Add VEA supported profiles to GPUInfo.

content/public/renderer/video_encode_accelerator.cc

Index: content/public/renderer/video_encode_accelerator.cc
diff --git a/content/public/renderer/video_encode_accelerator.cc b/content/public/renderer/video_encode_accelerator.cc
index f1859c3cc59b421d1c3d0e14bceca3341d056a06..0a2c0f1ec73b370d2f00520ebb246d8d6014bb69 100644
--- a/content/public/renderer/video_encode_accelerator.cc
+++ b/content/public/renderer/video_encode_accelerator.cc
@@ -11,6 +11,21 @@
 
 namespace content {
 
+// The supported profiles of video encode accelerator.
+static std::vector<media::VideoEncodeAccelerator::SupportedProfile>*
+    g_supported_profiles = NULL;
+
+static void GetSupportedVideoEncodeAcceleratorProfilesInternal(
+    scoped_refptr<media::GpuVideoAcceleratorFactories> gpu_factories,
+    base::WaitableEvent* waiter,
+    std::vector<media::VideoEncodeAccelerator::SupportedProfile>* profiles) {
+  scoped_ptr<media::VideoEncodeAccelerator> video_encoder =
+      gpu_factories->CreateVideoEncodeAccelerator();
+  if (video_encoder)
+    *profiles = video_encoder->GetSupportedProfiles();
+  waiter->Signal();
+}
+
 void CreateVideoEncodeAccelerator(
     const OnCreateVideoEncodeAcceleratorCallback& callback) {
   DCHECK(!callback.is_null());
@@ -35,7 +50,21 @@ void CreateVideoEncodeAccelerator(
 
 std::vector<media::VideoEncodeAccelerator::SupportedProfile>

[kcwu, 2014/09/19 11:15:54]

Since you cached the result to global variable, change the return type to const
reference to avoid copy?

 GetSupportedVideoEncodeAcceleratorProfiles() {
-  return GpuVideoEncodeAcceleratorHost::GetSupportedProfiles();
+  if (!g_supported_profiles) {
+    g_supported_profiles =
+        new std::vector<media::VideoEncodeAccelerator::SupportedProfile>();
+    scoped_refptr<media::GpuVideoAcceleratorFactories> gpu_factories =
+        RenderThreadImpl::current()->GetGpuFactories();
+    base::WaitableEvent waiter(true, false);
+    gpu_factories->GetTaskRunner()->PostTask(
+        FROM_HERE,
+        base::Bind(&GetSupportedVideoEncodeAcceleratorProfilesInternal,
+                   gpu_factories,
+                   &waiter,
+                   g_supported_profiles));
+    waiter.Wait();
+  }
+  return *g_supported_profiles;
 }
 
 }  // namespace content