Only allow webrtc HW offload for H264 encode for extension process.

content/public/common/content_switches.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 "content/public/common/content_switches.h"
 
 #include "base/command_line.h"
 
 namespace switches {
 
@@ skipping 828 matching lines @@
 
 // Disables encryption of RTP Media for WebRTC. When Chrome embeds Content, it
 // ignores this switch on its stable and beta channels.
 const char kDisableWebRtcEncryption[]      = "disable-webrtc-encryption";
 
 // Disables HW encode acceleration for WebRTC.
 const char kDisableWebRtcHWEncoding[]       = "disable-webrtc-hw-encoding";
 
 // Enables VP8 HW encode acceleration for WebRTC.
 const char kEnableWebRtcHWVp8Encoding[]     = "enable-webrtc-hw-vp8-encoding";
+
+// Enables H264 HW encode acceleration for WebRTC.
+const char kEnableWebRtcHWH264Encoding[]    = "enable-webrtc-hw-h264-encoding";
 #endif
 
 #if defined(OS_ANDROID)
 // Disable user gesture requirement for media playback.
 const char kDisableGestureRequirementForMediaPlayback[] =
     "disable-gesture-requirement-for-media-playback";
 
 // Disable the click delay by sending click events during double tap.
 const char kDisableClickDelay[]             = "disable-click-delay";
 
@@ skipping 56 matching lines @@
 // Enable the Win32K process mitigation policy for renderer processes which
 // prevents them from invoking user32 and gdi32 system calls which enter
 // the kernel. This is only supported on Windows 8 and beyond.
 const char kEnableWin32kRendererLockDown[]
     = "enable_win32k_renderer_lockdown";
 #endif
 
 // Don't dump stuff here, follow the same order as the header.
 
 }  // namespace switches