diff --git a/webrtc/BUILD.gn b/webrtc/BUILD.gn
index c8b74f0269..f06597dffa 100644
--- a/webrtc/BUILD.gn
+++ b/webrtc/BUILD.gn
@@ -147,7 +147,6 @@ config("common_config") {
       "HAVE_WEBRTC_VIDEO",
       "HAVE_WEBRTC_VOICE",
       "LOGGING_INSIDE_WEBRTC",
-      "SRTP_RELATIVE_PATH",
       "SSL_USE_OPENSSL",
       "USE_WEBRTC_DEV_BRANCH",
     ]
diff --git a/webrtc/build/common.gypi b/webrtc/build/common.gypi
index 5bf40047d2..304c933c38 100644
--- a/webrtc/build/common.gypi
+++ b/webrtc/build/common.gypi
@@ -294,7 +294,6 @@
           'LOGGING_INSIDE_WEBRTC',
           'NO_MAIN_THREAD_WRAPPING',
           'NO_SOUND_SYSTEM',
-          'SRTP_RELATIVE_PATH',
           'SSL_USE_OPENSSL',
           'USE_WEBRTC_DEV_BRANCH',
           'WEBRTC_CHROMIUM_BUILD',
diff --git a/webrtc/pc/BUILD.gn b/webrtc/pc/BUILD.gn
index 7efe1f175f..fe8711fa26 100644
--- a/webrtc/pc/BUILD.gn
+++ b/webrtc/pc/BUILD.gn
@@ -16,7 +16,6 @@ group("pc") {
 
 config("rtc_pc_config") {
   defines = [
-    "SRTP_RELATIVE_PATH",
     "HAVE_SCTP",
     "HAVE_SRTP",
   ]
diff --git a/webrtc/pc/externalhmac.cc b/webrtc/pc/externalhmac.cc
index a094ff8432..ec71833d75 100644
--- a/webrtc/pc/externalhmac.cc
+++ b/webrtc/pc/externalhmac.cc
@@ -12,31 +12,12 @@
 
 #include <stdlib.h>  // For malloc/free.
 
-#ifdef HAVE_SRTP
-extern "C" {
-#ifdef SRTP_RELATIVE_PATH
-#include "crypto_kernel.h"  // NOLINT
-#include "srtp.h"  // NOLINT
-#else
-#include "third_party/libsrtp/crypto/include/crypto_kernel.h"
-#include "third_party/libsrtp/include/srtp.h"
-#endif  // SRTP_RELATIVE_PATH
-}
-#endif // HAVE_SRTP
-
 #include "webrtc/base/logging.h"
 
-#ifdef COMPILING_AGAINST_LIBSRTP1
-#define srtp_auth_type_t auth_type_t
-
-#define srtp_auth_init_func auth_init_func
-#define srtp_auth_compute_func auth_compute_func
-#define srtp_auth_update_func auth_update_func
-#define srtp_auth_start_func auth_start_func
-#define srtp_auth_test_case_t auth_test_case_t
-
-#define srtp_replace_auth_type crypto_kernel_replace_auth_type
-#endif  // COMPILING_AGAINST_LIBSRTP1
+#ifdef HAVE_SRTP
+#include "third_party/libsrtp/crypto/include/crypto_kernel.h"
+#include "third_party/libsrtp/include/srtp.h"
+#endif // HAVE_SRTP
 
 #if defined(HAVE_SRTP) && defined(ENABLE_EXTERNAL_AUTH)
 
@@ -71,21 +52,6 @@ static const char kExternalHmacDescription[] =
 
 // srtp_auth_type_t external_hmac is the hmac metaobject
 
-#ifdef COMPILING_AGAINST_LIBSRTP1
-static const srtp_auth_type_t external_hmac  = {
-  external_hmac_alloc,
-  external_hmac_dealloc,
-  (srtp_auth_init_func)    external_hmac_init,
-  (srtp_auth_compute_func) external_hmac_compute,
-  (srtp_auth_update_func)  external_hmac_update,
-  (srtp_auth_start_func)   external_hmac_start,
-  const_cast<char*>(kExternalHmacDescription),
-  0,     // Instance count.
-  const_cast<srtp_auth_test_case_t*>(&kExternalHmacTestCase0),
-  NULL,  // No debugging module.
-  EXTERNAL_HMAC_SHA1
-};
-#else
 static const srtp_auth_type_t external_hmac  = {
   external_hmac_alloc,
   external_hmac_dealloc,
@@ -97,7 +63,6 @@ static const srtp_auth_type_t external_hmac  = {
   const_cast<srtp_auth_test_case_t*>(&kExternalHmacTestCase0),
   EXTERNAL_HMAC_SHA1
 };
-#endif  // COMPILING_AGAINST_LIBSRTP1
 
 srtp_err_status_t external_hmac_alloc(srtp_auth_t** a,
                                       int key_len,
diff --git a/webrtc/pc/externalhmac.h b/webrtc/pc/externalhmac.h
index 091412e6a9..f9f1a2cc6f 100644
--- a/webrtc/pc/externalhmac.h
+++ b/webrtc/pc/externalhmac.h
@@ -30,26 +30,9 @@
 
 #include "webrtc/base/basictypes.h"
 #ifdef HAVE_SRTP
-extern "C" {
-#ifdef SRTP_RELATIVE_PATH
-#include "auth.h"  // NOLINT
-#else
 #include "third_party/libsrtp/crypto/include/auth.h"
-#endif  // SRTP_RELATIVE_PATH
-}
 #endif  // HAVE_SRTP
 
-#if defined(HAVE_SRTP) && !defined(SRTP_HMAC_SHA1)
-// Include compatibility shims to compile against libsrtp 1.x.
-// TODO(mattdr): Remove once Chromium uses libsrtp 2.
-
-// Remember that the definition of SRTP_HMAC_SHA1 is synthetic.
-#define COMPILING_AGAINST_LIBSRTP1 1
-
-#define SRTP_HMAC_SHA1 HMAC_SHA1
-#define srtp_auth_t auth_t
-#endif
-
 #if defined(HAVE_SRTP) && defined(ENABLE_EXTERNAL_AUTH)
 
 #define EXTERNAL_HMAC_SHA1 SRTP_HMAC_SHA1 + 1
diff --git a/webrtc/pc/pc.gyp b/webrtc/pc/pc.gyp
index 36be48d56d..3a1ca20098 100755
--- a/webrtc/pc/pc.gyp
+++ b/webrtc/pc/pc.gyp
@@ -10,7 +10,6 @@
   'includes': ['../build/common.gypi'],
   'variables': {
     'rtc_pc_defines': [
-      'SRTP_RELATIVE_PATH',
       'HAVE_SCTP',
       'HAVE_SRTP',
     ],
diff --git a/webrtc/pc/srtpfilter.cc b/webrtc/pc/srtpfilter.cc
index f1ecff1001..5e2dbb0eb6 100644
--- a/webrtc/pc/srtpfilter.cc
+++ b/webrtc/pc/srtpfilter.cc
@@ -14,6 +14,8 @@
 
 #include <algorithm>
 
+#include "third_party/libsrtp/include/srtp.h"
+#include "third_party/libsrtp/include/srtp_priv.h"
 #include "webrtc/base/base64.h"
 #include "webrtc/base/buffer.h"
 #include "webrtc/base/byteorder.h"
@@ -25,18 +27,6 @@
 #include "webrtc/media/base/rtputils.h"
 #include "webrtc/pc/externalhmac.h"
 
-#ifdef HAVE_SRTP
-extern "C" {
-#ifdef SRTP_RELATIVE_PATH
-#include "srtp.h"  // NOLINT
-#include "srtp_priv.h"  // NOLINT
-#else
-#include "third_party/libsrtp/include/srtp.h"
-#include "third_party/libsrtp/include/srtp_priv.h"
-#endif  // SRTP_RELATIVE_PATH
-}
-#endif  // HAVE_SRTP
-
 namespace cricket {
 
 #ifndef HAVE_SRTP
diff --git a/webrtc/pc/srtpfilter.h b/webrtc/pc/srtpfilter.h
index abea50744d..ec91805e30 100644
--- a/webrtc/pc/srtpfilter.h
+++ b/webrtc/pc/srtpfilter.h
@@ -28,11 +28,6 @@
 
 // Forward declaration to avoid pulling in libsrtp headers here
 struct srtp_event_data_t;
-
-// Libsrtp V1/V2 compatibility hack.
-// TODO(mattdr): Remove this #define after libsrtp 2.0 is in.
-#define srtp_ctx_t_ srtp_ctx_t
-
 struct srtp_ctx_t_;
 
 namespace cricket {
diff --git a/webrtc/pc/srtpfilter_unittest.cc b/webrtc/pc/srtpfilter_unittest.cc
index fda571195c..32cd20ed6a 100644
--- a/webrtc/pc/srtpfilter_unittest.cc
+++ b/webrtc/pc/srtpfilter_unittest.cc
@@ -8,6 +8,9 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
+#include "webrtc/pc/srtpfilter.h"
+
+#include "third_party/libsrtp/include/srtp.h"
 #include "webrtc/base/byteorder.h"
 #include "webrtc/base/constructormagic.h"
 #include "webrtc/base/gunit.h"
@@ -15,14 +18,6 @@
 #include "webrtc/media/base/cryptoparams.h"
 #include "webrtc/media/base/fakertp.h"
 #include "webrtc/p2p/base/sessiondescription.h"
-#include "webrtc/pc/srtpfilter.h"
-extern "C" {
-#ifdef SRTP_RELATIVE_PATH
-#include "crypto/include/err.h"
-#else
-#include "third_party/libsrtp/crypto/include/err.h"
-#endif
-}
 
 using rtc::CS_AES_CM_128_HMAC_SHA1_80;
 using rtc::CS_AES_CM_128_HMAC_SHA1_32;