Add querying supported formats to V4L2 VEA

content/public/common/content_switches.cc

Index: content/public/common/content_switches.cc
diff --git a/content/public/common/content_switches.cc b/content/public/common/content_switches.cc
index 3e014708c6c86c73b067dcfe462bf3c065b77d1c..d5b28d441afdb5b28b95034f73ca9e7d9be82682 100644
--- a/content/public/common/content_switches.cc
+++ b/content/public/common/content_switches.cc
@@ -875,9 +875,6 @@ 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";
 
@@ -928,7 +925,7 @@ const char kDisableWebAudio[]               = "disable-webaudio";
 // Disables panel fitting (used for mirror mode).
 const char kDisablePanelFitting[]           = "disable-panel-fitting";
 
-// Enables VA-API accelerated video encode.
+// Disables VA-API accelerated video encode.
 const char kDisableVaapiAcceleratedVideoEncode[] =
     "disable-vaapi-accelerated-video-encode";
 #endif