Android: enable/disable WebRTC HW H264 with a flag.

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 "build/build_config.h"
 #include "content/public/common/content_switches.h"
 
 namespace switches {
 
 // The number of MSAA samples for canvas2D. Requires MSAA support by GPU to
@@ skipping 891 matching lines @@
 #if defined(ENABLE_WEBRTC)
 // Disables HW decode acceleration for WebRTC.
 const char kDisableWebRtcHWDecoding[]       = "disable-webrtc-hw-decoding";
 
 // 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";
+const char kDisableWebRtcHWEncodingVPx[] = "vpx";
+const char kDisableWebRtcHWEncodingH264[] = "h264";
+const char kDisableWebRtcHWEncodingNone[] = "none";
 
 // Enables H264 HW encode acceleration for WebRTC.
 const char kEnableWebRtcHWH264Encoding[]    = "enable-webrtc-hw-h264-encoding";
 
 // Enables Origin header in Stun messages for WebRTC.
 const char kEnableWebRtcStunOrigin[]        = "enable-webrtc-stun-origin";
 
 // Enforce IP Permission check. TODO(guoweis): Remove this once the feature is
 // not under finch and becomes the default.
 const char kEnforceWebRtcIPPermissionCheck[] =
@@ skipping 144 matching lines @@
 // the given directory. Used primarily to gather samples for IPC fuzzing.
 const char kIpcDumpDirectory[] = "ipc-dump-directory";
 
 // Specifies the testcase used by the IPC fuzzer.
 const char kIpcFuzzerTestcase[] = "ipc-fuzzer-testcase";
 #endif
 
 // Don't dump stuff here, follow the same order as the header.
 
 }  // namespace switches