Add command line switch --enable-webrtc on Android.

chrome/browser/about_flags.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/about_flags.h"
 
 #include <algorithm>
 #include <iterator>
 #include <map>
 #include <set>
@@ skipping 406 matching lines @@
     IDS_FLAGS_DISABLE_WEBGL_NAME,
     IDS_FLAGS_DISABLE_WEBGL_DESCRIPTION,
     kOsDesktop,
 #if defined(OS_ANDROID)
     SINGLE_VALUE_TYPE("")
 #else
     SINGLE_VALUE_TYPE(switches::kDisableExperimentalWebGL)
 #endif
   },
   {
+    "enable-webrtc",
+    IDS_FLAGS_ENABLE_WEBRTC_NAME,
+    IDS_FLAGS_ENABLE_WEBRTC_DESCRIPTION,
+    kOsAndroid,
+#if defined(OS_ANDROID)
+    SINGLE_VALUE_TYPE(switches::kEnableWebRTC)
+#else
+    SINGLE_VALUE_TYPE("")
+#endif
+  },
+  {
     "fixed-position-creates-stacking-context",
     IDS_FLAGS_FIXED_POSITION_CREATES_STACKING_CONTEXT_NAME,
     IDS_FLAGS_FIXED_POSITION_CREATES_STACKING_CONTEXT_DESCRIPTION,
     kOsAll,
     MULTI_VALUE_TYPE(kFixedPositionCreatesStackingContextChoices)
   },
   // TODO(bbudge): When NaCl is on by default, remove this flag entry.
   {
     "enable-nacl",  // FLAGS:RECORD_UMA
     IDS_FLAGS_ENABLE_NACL_NAME,
@@ skipping 1239 matching lines @@
 }
 
 const Experiment* GetExperiments(size_t* count) {
   *count = num_experiments;
   return experiments;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags