Android: enable WebRTC HW H264 with a flag by default

content/public/common/content_switches.h

Index: content/public/common/content_switches.h
diff --git a/content/public/common/content_switches.h b/content/public/common/content_switches.h
index 444dc289c29a90d48120f3e1e390b544700a154d..638c56b839cfb5ae2d4444753dbc3128e80fba75 100644
--- a/content/public/common/content_switches.h
+++ b/content/public/common/content_switches.h
@@ -263,10 +263,7 @@ CONTENT_EXPORT extern const char kZygoteProcess[];
 #if BUILDFLAG(ENABLE_WEBRTC)
 CONTENT_EXPORT extern const char kDisableWebRtcHWDecoding[];
 CONTENT_EXPORT extern const char kDisableWebRtcEncryption[];
-CONTENT_EXPORT extern const char kDisableWebRtcHWEncoding[];
-CONTENT_EXPORT extern const char kDisableWebRtcHWEncodingVPx[];
-CONTENT_EXPORT extern const char kDisableWebRtcHWEncodingH264[];
-CONTENT_EXPORT extern const char kDisableWebRtcHWEncodingNone[];
+CONTENT_EXPORT extern const char kDisableWebRtcHWVP8Encoding[];
 CONTENT_EXPORT extern const char kEnableWebRtcStunOrigin[];
 CONTENT_EXPORT extern const char kEnforceWebRtcIPPermissionCheck[];
 CONTENT_EXPORT extern const char kForceWebRtcIPHandlingPolicy[];