Add VDA supported profile to GPUInfo.

content/common/gpu/media/gpu_video_decode_accelerator.cc

Index: content/common/gpu/media/gpu_video_decode_accelerator.cc
diff --git a/content/common/gpu/media/gpu_video_decode_accelerator.cc b/content/common/gpu/media/gpu_video_decode_accelerator.cc
index f741cb20418fbecfa99b83d54dd814f131c33892..b1ec19ea1573c1fe81b38eaf13b1886e4a44fb19 100644
--- a/content/common/gpu/media/gpu_video_decode_accelerator.cc
+++ b/content/common/gpu/media/gpu_video_decode_accelerator.cc
@@ -8,6 +8,7 @@
 
 #include "base/bind.h"
 #include "base/command_line.h"
+#include "base/cpu.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/stl_util.h"
@@ -20,6 +21,7 @@
 #include "ipc/ipc_message_utils.h"
 #include "ipc/message_filter.h"
 #include "media/base/limits.h"
+#include "media/base/media_switches.h"
 #include "ui/gl/gl_context.h"
 #include "ui/gl/gl_surface_egl.h"
 
@@ -315,6 +317,42 @@ void GpuVideoDecodeAccelerator::Initialize(
   SendCreateDecoderReply(init_done_msg, true);
 }
 
+gpu::VideoDecodeAcceleratorSupportedResolution
+GpuVideoDecodeAccelerator::GetSupportedResolution() {
+  gpu::VideoDecodeAcceleratorSupportedResolution resolution;
+  // Set default values.
+  resolution.min.SetSize(16, 16);

[wuchengli, 2014/12/23 03:37:20]

Moving this line to non-windows case (line 334) is more symmetric.

[henryhsu, 2014/12/23 05:52:06]

Done.

+  // Use 1088 to account for 16x16 macroblocks.
+  resolution.max.SetSize(1920, 1088);
+
+#if defined(OS_WIN)
+  // Windows Media Foundation H.264 decoding does not support decoding videos
+  // with any dimension smaller than 48 pixels:
+  // http://msdn.microsoft.com/en-us/library/windows/desktop/dd797815
+  resolution.min.SetSize(48, 48);
+#else
+  // Only non-Windows, Ivy Bridge+ platforms can support more than 1920x1080.
+  // NOTE: additional autodetection logic may require updating input buffer size
+  // selection in platform-specific implementations, such as
+  // V4L2VideoDecodeAccelerator.
+  base::CPU cpu;
+  bool hw_large_video_support =
+      CommandLine::ForCurrentProcess()->HasSwitch(

[wuchengli, 2014/12/23 03:37:20]

Please test this and make sure HasSwitch is working here in GPU process.

[henryhsu, 2014/12/23 05:52:06]

Tested on peach_pi and this switch is 1.

+          switches::kIgnoreResolutionLimitsForAcceleratedVideoDecode) ||
+      ((cpu.vendor_name() == "GenuineIntel") && cpu.model() >= 55);
+  if (hw_large_video_support) {
+#if defined(OS_CHROMEOS)
+    resolution.max.SetSize(4096, 2160);
+#else
+    // For non-Windows and non-ChromeOs platform.

[wuchengli, 2014/12/23 03:37:20]

Please add comments to explain kMaxDimension is not the actual limit and those
platforms do not support setting the precise values.

s/ChromeOs/ChromeOS/

[henryhsu, 2014/12/23 05:52:06]

Done.

+    resolution.max.SetSize(
+        media::limits::kMaxDimension, media::limits::kMaxDimension);
+#endif
+  }
+#endif
+  return resolution;
+}
+
 // Runs on IO thread if video_decode_accelerator_->CanDecodeOnIOThread() is
 // true, otherwise on the main thread.
 void GpuVideoDecodeAccelerator::OnDecode(