MJPEG acceleration for V4L2

content/browser/renderer_host/gpu_jpeg_decoder.cc

Index: content/browser/renderer_host/gpu_jpeg_decoder.cc
diff --git a/content/browser/renderer_host/gpu_jpeg_decoder.cc b/content/browser/renderer_host/gpu_jpeg_decoder.cc
index dd69f5b1d2f57901f3f070c1e08f3873b2080b91..7acbf728b2682c356b605dd1e82a1c27adf8de7d 100644
--- a/content/browser/renderer_host/gpu_jpeg_decoder.cc
+++ b/content/browser/renderer_host/gpu_jpeg_decoder.cc
@@ -23,6 +23,8 @@ bool GpuJpegDecoder::Supported() {
 // TODO(kcwu): move this information to GpuInfo.
 #if defined(OS_CHROMEOS) && defined(ARCH_CPU_X86_FAMILY)
   return true;
+#elif defined(OS_CHROMEOS) && defined(USE_V4L2_CODEC)
+  return true;

[wuchengli, 2015/06/11 11:08:54]

Make this a separate CL. Do not enable it directly. If something goes wrong, the
entire CL won't be get reverted.

Also, we cannot enable this for all ARM devices. Please prepare a CL to properly
query the capabilities via V4L2 API and put it in GpuInfo.

[henryhsu, 2015/06/12 05:47:59]

Done.

 #endif
   return false;
 }