Android: enable HW encoding

chrome/browser/flag_descriptions.h

 // Copyright 2017 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.
 
 #ifndef CHROME_BROWSER_FLAG_DESCRIPTIONS_H_
 #define CHROME_BROWSER_FLAG_DESCRIPTIONS_H_
 
 // Includes needed for macros allowing conditional compilation of some strings.
 #include "build/build_config.h"
 #include "build/buildflag.h"
@@ skipping 576 matching lines @@
 extern const char kWebrtcHwEncodingDescription[];
 
 // Name of chrome:flags option to turn on WebRTC h264 hardware video encoding
 // support.
 extern const char kWebrtcHwH264EncodingName[];
 
 // Description of chrome:flags option to turn on WebRTC hardware h264 video
 // encoding support.
 extern const char kWebrtcHwH264EncodingDescription[];
 
+// Name of chrome:flags option to turn on WebRTC vp8 hardware video encoding
+// support.
+extern const char kWebrtcHwVP8EncodingName[];
+
+// Description of chrome:flags option to turn on WebRTC hardware vp8 video
+// encoding support.
+extern const char kWebrtcHwVP8EncodingDescription[];
+
 // Name of chrome:flags option to enable GCM cipher suites for WebRTC
 extern const char kWebrtcSrtpAesGcmName[];
 
 // Description of chrome:flags option to enable GCM cipher suites for WebRTC
 extern const char kWebrtcSrtpAesGcmDescription[];
 
 // Name of chrome:flags option to turn on Origin header for WebRTC STUN messages
 extern const char kWebrtcStunOriginName[];
 
 // Description of chrome:flags option to turn on Origin header for WebRTC STUN
@@ skipping 2682 matching lines @@
 
 // Name of the flag that enables Blink's idle time spell checker.
 extern const char kEnableIdleTimeSpellCheckingName[];
 
 // Description of the flag that enables Blink's idle time spell checker.
 extern const char kEnableIdleTimeSpellCheckingDescription[];
 
 }  // namespace flag_descriptions
 
 #endif  // CHROME_BROWSER_FLAG_DESCRIPTIONS_H_