Enable H.264 video WebRTC behind run-time flag and add WebRtcBrowserTest for H.264

content/content_common.gypi

 # 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.
 
 {
   'dependencies': [
     '../base/base.gyp:base',
     '../cc/cc.gyp:cc',
     '../components/tracing.gyp:tracing',
     '../device/bluetooth/bluetooth.gyp:device_bluetooth',
@@ skipping 27 matching lines @@
     '../ui/accessibility/accessibility.gyp:ax_gen',
     '../ui/base/ime/ui_base_ime.gyp:ui_base_ime',
     '../ui/base/ui_base.gyp:ui_base',
     '../ui/events/events.gyp:events_ipc',
     '../ui/gfx/gfx.gyp:gfx',
     '../ui/gfx/gfx.gyp:gfx_geometry',
     '../ui/gfx/ipc/gfx_ipc.gyp:gfx_ipc',
     '../ui/gl/gl.gyp:gl',
     '../ui/shell_dialogs/shell_dialogs.gyp:shell_dialogs',
     '../url/url.gyp:url_lib',
     'content_common_mojo_bindings.gyp:content_common_mojo_bindings',

[kjellander_chromium, 2016/02/22 14:45:53]

Since you're listing the generated header in the public_common_sources variable,
maybe you should list content.gyp:common_features here as well?
Otherwise both content_common and content targets in content.gyp (which both
includes content_common.gypi) are depending on it without it being generated.
However, I guess it shouldn't have any effect as long as nothing that's being
compiled in those targets includes it.

[hbos_chromium, 2016/02/22 15:43:39]

Done.

   ],
   'include_dirs': [
     '..',
   ],
   'actions': [
     {
       'action_name': 'generate_webkit_version',
       'inputs': [
         '<(script)',
         '<(lastchange)',
@@ skipping 34 matching lines @@
       'public/common/browser_plugin_guest_mode.cc',
       'public/common/browser_plugin_guest_mode.h',
       'public/common/browser_side_navigation_policy.cc',
       'public/common/browser_side_navigation_policy.h',
       'public/common/child_process_host.h',
       'public/common/child_process_host_delegate.cc',
       'public/common/child_process_host_delegate.h',
       'public/common/child_process_sandbox_support_linux.h',
       'public/common/color_suggestion.cc',
       'public/common/color_suggestion.h',
+      'public/common/common_features.h',
       'public/common/common_param_traits.cc',
       'public/common/common_param_traits.h',
       'public/common/common_param_traits_macros.h',
       'public/common/console_message_level.h',
       'public/common/content_client.cc',
       'public/common/content_client.h',
       'public/common/content_constants.cc',
       'public/common/content_constants.h',
       'public/common/content_descriptors.h',
       'public/common/content_features.cc',
@@ skipping 972 matching lines @@
         'common/gpu/client/gpu_memory_buffer_impl_ozone.cc',
         'common/gpu/client/gpu_memory_buffer_impl_ozone_native_pixmap.cc',
         'common/gpu/client/gpu_memory_buffer_impl_ozone_native_pixmap.h',
         'common/gpu/gpu_memory_buffer_factory_ozone.cc',
         'common/gpu/gpu_memory_buffer_factory_ozone_native_pixmap.cc',
         'common/gpu/gpu_memory_buffer_factory_ozone_native_pixmap.h',
       ],
     }],
   ],
 }