Move video encode accelerator IPC messages to GPU IO thread

media/video/video_encode_accelerator.cc

Index: media/video/video_encode_accelerator.cc
diff --git a/media/video/video_encode_accelerator.cc b/media/video/video_encode_accelerator.cc
index 51a4a7bb9e56a2167ca960fb35b73730af5ef303..80999343ae0d706d550940f7731528cb7a6f6030 100644
--- a/media/video/video_encode_accelerator.cc
+++ b/media/video/video_encode_accelerator.cc
@@ -17,6 +17,12 @@ VideoEncodeAccelerator::SupportedProfile::SupportedProfile()
 VideoEncodeAccelerator::SupportedProfile::~SupportedProfile() {
 }
 
+bool VideoEncodeAccelerator::TryToSetupEncodeOnSeparateThread(
+    const base::WeakPtr<Client>& encode_client,
+    const scoped_refptr<base::SingleThreadTaskRunner>& encode_task_runner) {
+  return false;
+}
+
 }  // namespace media
 
 namespace std {