Add VDA supported profile to GPUInfo.

content/common/gpu/media/v4l2_video_decode_accelerator.cc

Index: content/common/gpu/media/v4l2_video_decode_accelerator.cc
diff --git a/content/common/gpu/media/v4l2_video_decode_accelerator.cc b/content/common/gpu/media/v4l2_video_decode_accelerator.cc
index 41b11e3064f3b7c65999bd72538e45c521b586d4..059aefa6607253d41ad8d22d7b0ef2b0e705f25a 100644
--- a/content/common/gpu/media/v4l2_video_decode_accelerator.cc
+++ b/content/common/gpu/media/v4l2_video_decode_accelerator.cc
@@ -444,6 +444,47 @@ void V4L2VideoDecodeAccelerator::Destroy() {
 
 bool V4L2VideoDecodeAccelerator::CanDecodeOnIOThread() { return true; }
 
+// static
+std::vector<media::VideoDecodeAccelerator::SupportedProfile>
+V4L2VideoDecodeAccelerator::GetSupportedProfiles() {
+  std::vector<SupportedProfile> profiles;
+  scoped_refptr<V4L2Device> device = V4L2Device::Create(V4L2Device::kDecoder);
+  if (!device)
+    return profiles;
+
+  SupportedProfile profile;
+  profile.min_resolution.SetSize(16, 16);
+  // NOTE: additional autodetection logic may require updating input buffer size
+  // selection.
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kIgnoreResolutionLimitsForAcceleratedVideoDecode))
+    profile.max_resolution.SetSize(4096, 2160);
+  else
+    profile.max_resolution.SetSize(1920, 1088);
+
+  v4l2_fmtdesc fmtdesc;
+  memset(&fmtdesc, 0, sizeof(fmtdesc));
+  fmtdesc.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
+  for (; device->Ioctl(VIDIOC_ENUM_FMT, &fmtdesc) == 0; ++fmtdesc.index) {
+    switch (fmtdesc.pixelformat) {
+      case V4L2_PIX_FMT_H264:
+        profile.profile = media::H264PROFILE_MAIN;

[Pawel Osciak, 2015/03/26 08:36:40]

More H264 profiles needed here as well.

[henryhsu_tw, 2015/03/26 09:38:34]

Done.

+        profiles.push_back(profile);
+        break;
+      case V4L2_PIX_FMT_VP8:
+        profile.profile = media::VP8PROFILE_ANY;
+        profiles.push_back(profile);
+        break;
+      case V4L2_PIX_FMT_VP9:
+        profile.profile = media::VP9PROFILE_ANY;
+        profiles.push_back(profile);
+        break;
+    }
+  }
+
+  return profiles;
+}
+
 void V4L2VideoDecodeAccelerator::DecodeTask(
     const media::BitstreamBuffer& bitstream_buffer) {
   DVLOG(3) << "DecodeTask(): input_id=" << bitstream_buffer.id();