Enable NV12 DXGI video copying path by default.

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 62955738491c9b319bd03add4bc465bb099ecd90..4383bb36f8b81e4ffbbc33573fb77825274cd94c 100644
--- a/content/public/common/content_switches.cc
+++ b/content/public/common/content_switches.cc
@@ -409,8 +409,8 @@ const char kEnableMemoryBenchmarking[]      = "enable-memory-benchmarking";
 // Enables the network information API.
 const char kEnableNetworkInformation[]      = "enable-network-information";
 
-// Enable the video decoder to draw to an NV12 textures instead of ARGB.
-const char kEnableNv12DxgiVideo[] = "enable-nv12-dxgi-video";
+// Disables the video decoder from drawing to an NV12 textures instead of ARGB.
+const char kDisableNv12DxgiVideo[] = "disable-nv12-dxgi-video";
 
 // Enables compositor-accelerated touch-screen pinch gestures.
 const char kEnablePinch[]                   = "enable-pinch";