diff --git a/.gn b/.gn
index f849ef7281..b1eb19d2ca 100644
--- a/.gn
+++ b/.gn
@@ -24,6 +24,7 @@ check_targets = [ "//webrtc/*" ]
 # to force additional review for new uses of exec_script, which is strongly
 # discouraged except for gypi_to_gn calls.
 exec_script_whitelist = [
+  "//build/config/BUILD.gn",
   "//build/config/android/BUILD.gn",
   "//build/config/android/config.gni",
   "//build/config/android/internal_rules.gni",
diff --git a/DEPS b/DEPS
index 5ae15c60a5..f5d863e2d9 100644
--- a/DEPS
+++ b/DEPS
@@ -6,7 +6,7 @@
 vars = {
   'extra_gyp_flag': '-Dextra_gyp_flag=0',
   'chromium_git': 'https://chromium.googlesource.com',
-  'chromium_revision': '1d144ca7f86e0c684c67d6c1b6d5414ca9074615',
+  'chromium_revision': 'fa5d546954c631d87299cd9a3fd3cd1d4ebc1931',
 }
 
 # NOTE: Use http rather than https; the latter can cause problems for users
diff --git a/webrtc/modules/audio_processing/audio_processing_tests.gypi b/webrtc/modules/audio_processing/audio_processing_tests.gypi
index ad82f4bdad..f672226e4b 100644
--- a/webrtc/modules/audio_processing/audio_processing_tests.gypi
+++ b/webrtc/modules/audio_processing/audio_processing_tests.gypi
@@ -72,6 +72,18 @@
       'sources': [
         'intelligibility/test/intelligibility_proc.cc',
       ],
+      'conditions': [
+        ['OS=="ios"', {
+          'xcode_settings': {
+            'WARNING_CFLAGS':  [
+              # Suppress compiler warnings about deprecated that triggered
+              # when moving from ios_deployment_target 7.0 to 9.0.
+              # See webrtc:5549 for more details.
+              '-Wno-deprecated-declarations',
+            ],
+          },
+        }],
+      ],
     }, # intelligibility_proc
   ],
   'conditions': [
diff --git a/webrtc/supplement.gypi b/webrtc/supplement.gypi
index edccd4d81d..183255b715 100644
--- a/webrtc/supplement.gypi
+++ b/webrtc/supplement.gypi
@@ -5,10 +5,6 @@
       # Override the default (10.6) in Chromium's build/common.gypi.
       # Needed for ARC and libc++.
       'mac_deployment_target%': '10.7',
-      # Disable use of sysroot for Linux. It's enabled by default in Chromium,
-      # but it currently lacks the libudev-dev package.
-      # TODO(kjellander): Remove when crbug.com/561584 is fixed.
-      'use_sysroot': 0,
     },
     'webrtc_root%': '<(webrtc_root)',
     'mac_deployment_target%': '<(mac_deployment_target)',
diff --git a/webrtc/test/test.gyp b/webrtc/test/test.gyp
index 492690db8e..cb5650dc8a 100644
--- a/webrtc/test/test.gyp
+++ b/webrtc/test/test.gyp
@@ -41,6 +41,9 @@
         'channel_transport/udp_transport_impl.cc',
         'channel_transport/udp_transport_impl.h',
       ],
+      'msvs_disabled_warnings': [
+        4302,  # cast truncation
+      ],
       'conditions': [
         ['OS=="win" and clang==1', {
           'msvs_settings': {
diff --git a/webrtc/webrtc_examples.gyp b/webrtc/webrtc_examples.gyp
index 1ce450b0f1..6e9f3b45ed 100755
--- a/webrtc/webrtc_examples.gyp
+++ b/webrtc/webrtc_examples.gyp
@@ -165,6 +165,16 @@
             ],
           },
           'conditions': [
+            ['OS=="ios"', {
+              'xcode_settings': {
+                'WARNING_CFLAGS':  [
+                  # Suppress compiler warnings about deprecated that triggered
+                  # when moving from ios_deployment_target 7.0 to 9.0.
+                  # See webrtc:5549 for more details.
+                  '-Wno-deprecated-declarations',
+                ],
+              },
+            }],
             ['OS=="mac"', {
               'xcode_settings': {
                 'MACOSX_DEPLOYMENT_TARGET' : '10.8',
@@ -235,6 +245,16 @@
             '../talk/app/webrtc/legacy_objc_api.gyp:libjingle_peerconnection_objc',
           ],
           'conditions': [
+            ['OS=="ios"', {
+              'xcode_settings': {
+                'WARNING_CFLAGS':  [
+                  # Suppress compiler warnings about deprecated that triggered
+                  # when moving from ios_deployment_target 7.0 to 9.0.
+                  # See webrtc:5549 for more details.
+                  '-Wno-deprecated-declarations',
+                ],
+              },
+            }],
             ['OS=="mac"', {
               'xcode_settings': {
                 'MACOSX_DEPLOYMENT_TARGET' : '10.8',
@@ -286,6 +306,12 @@
               ],
               'xcode_settings': {
                 'INFOPLIST_FILE': 'examples/objc/AppRTCDemo/ios/Info.plist',
+                'WARNING_CFLAGS':  [
+                  # Suppress compiler warnings about deprecated that triggered
+                  # when moving from ios_deployment_target 7.0 to 9.0.
+                  # See webrtc:5549 for more details.
+                  '-Wno-deprecated-declarations',
+                ],
               },
             }],
             ['OS=="mac"', {