diff --git a/.gn b/.gn
index f4c26795a0..12d5e3d4fc 100644
--- a/.gn
+++ b/.gn
@@ -82,6 +82,7 @@ default_args = {
   # let's temporarily disable it.
   enable_jni_multiplexing = false
 
-  # This adds a dependency to //base.
+  # TODO(b/42223878): use_fuzztest_wrapper adds a dependency to //base so
+  # let's temporarly disable it.
   use_fuzztest_wrapper = false
 }
diff --git a/DEPS b/DEPS
index ed3f0827d7..a9b8fde206 100644
--- a/DEPS
+++ b/DEPS
@@ -126,6 +126,46 @@ deps = {
     'condition': 'not (host_os == "linux" and host_cpu == "arm64")',
   },
 
+  'third_party/rust': {
+    'url': Var('chromium_git') + '/chromium/src/third_party/rust@0e0ef14876a32128574eaf80bc7fc1c7cde92006',
+    'condition': 'checkout_android or checkout_fuzzer',
+  },
+
+  'third_party/rust-toolchain': {
+    'dep_type': 'gcs',
+    'bucket': 'chromium-browser-clang',
+    'objects': [
+      {
+        'object_name': 'Linux_x64/rust-toolchain-009e73825af0e59ad4fc603562e038b3dbd6593a-2-llvmorg-20-init-3847-g69c43468.tar.xz',
+        'sha256sum': '043bc520520424fad9fdfc87102e3af7c8f1ca4da3f7885e18f54fd29fc783e4',
+        'size_bytes': 115068636,
+        'generation': 1725552307196828,
+        'condition': 'host_os == "linux" and non_git_source',
+      },
+      {
+        'object_name': 'Mac/rust-toolchain-009e73825af0e59ad4fc603562e038b3dbd6593a-2-llvmorg-20-init-3847-g69c43468.tar.xz',
+        'sha256sum': '100befb02da0940fdede41a0ad0e28ded1ce4b6794b5e488bccc91ba1d27348a',
+        'size_bytes': 108415524,
+        'generation': 1725552308530261,
+        'condition': 'host_os == "mac" and host_cpu == "x64"',
+      },
+      {
+        'object_name': 'Mac_arm64/rust-toolchain-009e73825af0e59ad4fc603562e038b3dbd6593a-2-llvmorg-20-init-3847-g69c43468.tar.xz',
+        'sha256sum': '6f3ba8fe5a9590b476c087b412bd60e7e46ec59bc37aac76d9f7894c6bc34a75',
+        'size_bytes': 97820200,
+        'generation': 1725552309875662,
+        'condition': 'host_os == "mac" and host_cpu == "arm64"',
+      },
+      {
+        'object_name': 'Win/rust-toolchain-009e73825af0e59ad4fc603562e038b3dbd6593a-2-llvmorg-20-init-3847-g69c43468.tar.xz',
+        'sha256sum': '1d04274c7a96aa0148a9bb5b29fa5b33c24b97971e33634bed62ce504b1cb346',
+        'size_bytes': 172453420,
+        'generation': 1725552311180142,
+        'condition': 'host_os == "win"',
+      },
+    ],
+  },
+
   'src/third_party/clang-format/script':
     'https://chromium.googlesource.com/external/github.com/llvm/llvm-project/clang/tools/clang-format.git@3c0acd2d4e73dd911309d9e970ba09d58bf23a62',
   'src/third_party/libc++/src':
@@ -1960,6 +2000,12 @@ hooks = [
     'action': ['vpython3', 'src/tools/clang/scripts/update.py',
                '--package=clangd'],
   },
+  {
+    'name': 'rust',
+    'pattern': '.',
+    'condition': 'checkout_android or checkout_fuzzer',
+    'action': ['python3', 'src/tools/rust/update_rust.py'],
+  },
   {
     # Update LASTCHANGE.
     'name': 'lastchange',
diff --git a/tools_webrtc/mb/mb_config.pyl b/tools_webrtc/mb/mb_config.pyl
index d148ddc811..5c2165d1a3 100644
--- a/tools_webrtc/mb/mb_config.pyl
+++ b/tools_webrtc/mb/mb_config.pyl
@@ -234,54 +234,78 @@
   # A given config *may* be platform-specific but is not necessarily so (i.e.,
   # we might have mac, win, and linux bots all using the 'release_bot' config).
   'configs': {
-    'android_asan_shared_release_bot_arm':
-    ['android', 'asan', 'clang', 'pure_release_bot', 'arm'],
+    'android_asan_shared_release_bot_arm': [
+      'android',
+      'asan',
+      'chromium_base_dependency',
+      'clang',
+      'pure_release_bot',
+      'arm',
+    ],
     'android_debug_static_bot_arm': [
       'android',
+      'chromium_base_dependency',
       'debug_static_bot',
       'arm',
       'h265',
     ],
     'android_debug_static_bot_arm64': [
       'android',
+      'chromium_base_dependency',
       'debug_static_bot',
       'arm64',
       'h265',
     ],
     'android_debug_static_bot_x64': [
       'android',
+      'chromium_base_dependency',
       'debug_static_bot',
       'x64',
       'h265',
     ],
     'android_debug_static_bot_x86': [
       'android',
+      'chromium_base_dependency',
       'debug_static_bot',
       'x86',
       'h265',
     ],
-    'android_pure_release_bot_arm': ['android', 'pure_release_bot', 'arm'],
-    'android_pure_release_bot_arm64': ['android', 'pure_release_bot', 'arm64'],
+    'android_pure_release_bot_arm': [
+      'android',
+      'chromium_base_dependency',
+      'pure_release_bot',
+      'arm',
+    ],
+    'android_pure_release_bot_arm64': [
+      'android',
+      'chromium_base_dependency',
+      'pure_release_bot',
+      'arm64',
+    ],
     'android_release_bot_arm': [
       'android',
+      'chromium_base_dependency',
       'release_bot',
       'arm',
       'h265',
     ],
     'android_release_bot_arm64': [
       'android',
+      'chromium_base_dependency',
       'release_bot',
       'arm64',
       'h265',
     ],
     'android_release_bot_x64': [
       'android',
+      'chromium_base_dependency',
       'release_bot',
       'x64',
       'h265',
     ],
     'android_release_bot_x86': [
       'android',
+      'chromium_base_dependency',
       'release_bot',
       'x86',
       'h265',
@@ -305,15 +329,24 @@
     'debug_bot_arm64': ['openh264', 'debug_bot', 'arm64', 'h265'],
     'debug_bot_x64': ['openh264', 'debug_bot', 'x64', 'h265'],
     'debug_bot_x86': ['openh264', 'debug_bot', 'x86', 'h265'],
-    'disable_trace_events_android_arm':
-    ['android', 'arm', 'disable_trace_events', 'release_bot'],
+    'disable_trace_events_android_arm': [
+      'android',
+      'arm',
+      'chromium_base_dependency',
+      'disable_trace_events',
+      'release_bot',
+    ],
     'disable_trace_events_x64':
     ['x64', 'disable_trace_events', 'release_bot'],
     'disable_trace_events_x86':
     ['x86', 'disable_trace_events', 'release_bot'],
     'dummy_audio_file_devices_no_protobuf_android_arm': [
-      'android', 'debug_static_bot', 'arm', 'dummy_audio_file_devices',
-      'no_protobuf'
+      'android',
+      'arm',
+      'chromium_base_dependency',
+      'debug_static_bot',
+      'dummy_audio_file_devices',
+      'no_protobuf',
     ],
     'dummy_audio_file_devices_no_protobuf_x64':
     ['debug_bot', 'x64', 'dummy_audio_file_devices', 'no_protobuf'],
@@ -339,8 +372,14 @@
       'ios', 'release_bot', 'arm64', 'no_ios_code_signing', 'xctest',
     ],
     'libfuzzer_asan_release_bot_x64': [
-      'libfuzzer', 'asan', 'optimize_for_fuzzing', 'openh264',
-      'pure_release_bot', 'x64', 'h265'
+      'asan',
+      'chromium_base_dependency',
+      'h265',
+      'libfuzzer',
+      'openh264',
+      'optimize_for_fuzzing',
+      'pure_release_bot',
+      'x64',
     ],
     'libstdcpp_x64': ['debug_bot', 'x64', 'no_custom_libcxx'],
     'mac_asan_clang_release_bot_x64': [
@@ -355,7 +394,13 @@
     ['msan', 'clang', 'openh264', 'pure_release_bot', 'x64', 'h265'],
     'no_h264_debug_bot_x86': ['debug_bot', 'x86'],
     'openssl_x64': ['debug_bot', 'x64', 'no_build_ssl'],
-    'perfetto_android_arm': [ 'android', 'arm', 'perfetto', 'release_bot'],
+    'perfetto_android_arm': [
+      'android',
+      'arm',
+      'chromium_base_dependency',
+      'perfetto',
+      'release_bot'
+    ],
     'perfetto_x64': [ 'x64', 'perfetto', 'release_bot'],
     'perfetto_x86': [ 'x86', 'perfetto', 'release_bot'],
     'pure_release_bot_x64': ['openh264', 'pure_release_bot', 'x64', 'h265'],
@@ -366,8 +411,14 @@
     'release_bot_x64_fuchsia':
     ['openh264', 'release_bot', 'x64', 'fuchsia', 'h265'],
     'release_bot_x86': ['openh264', 'release_bot', 'x86', 'h265'],
-    'rtti_no_sctp_android_arm':
-    ['android', 'debug_static_bot', 'arm', 'rtti', 'no_sctp'],
+    'rtti_no_sctp_android_arm': [
+      'android',
+      'arm',
+      'chromium_base_dependency',
+      'debug_static_bot',
+      'no_sctp',
+      'rtti',
+    ],
     'rtti_no_sctp_no_unicode_win_x86':
     ['debug_bot', 'x86', 'rtti', 'no_sctp', 'win_undef_unicode'],
     'rtti_no_sctp_x64': ['debug_bot', 'x64', 'rtti', 'no_sctp'],
@@ -440,6 +491,10 @@
     'asan': {
       'gn_args': 'is_asan=true',
     },
+    # TODO(b/42223878): Remove this code when the dependency on base is gone.
+    'chromium_base_dependency': {
+      'mixins': ['enable_chromium_prelude', 'enable_rust']
+    },
     # is_clang=true by default, this is only to guard from upstream changes.
     'clang': {
       'gn_args': 'is_clang=true',
@@ -468,6 +523,12 @@
     'dummy_audio_file_devices': {
       'gn_args': 'rtc_use_dummy_audio_file_devices=true',
     },
+    'enable_chromium_prelude': {
+      'gn_args': 'enable_chromium_prelude=true',
+    },
+    'enable_rust': {
+      'gn_args': 'enable_rust=true enable_rust_cxx=true',
+    },
     'fuchsia': {
       'gn_args': 'target_os="fuchsia"'
     },
@@ -484,7 +545,7 @@
       'gn_args': 'ios_code_signing_identity_description="Apple Development"',
     },
     'libfuzzer': {
-      # use_fuzztest_wrapper adds a dependency to //base.
+      # TODO(b/42223878): use_fuzztest_wrapper adds a dependency to //base.
       'gn_args': 'use_libfuzzer=true use_fuzztest_wrapper=true',
     },
     'lsan': {