Limit the number of ARC codec

chrome/gpu/arc_video_accelerator.h

Index: chrome/gpu/arc_video_accelerator.h
diff --git a/chrome/gpu/arc_video_accelerator.h b/chrome/gpu/arc_video_accelerator.h
index 4c99fe05ec6b83bdc4c2ef892e12856e3ec694c6..a82d81b9bf97031b600d916e0dd4e28da1a3d934 100644
--- a/chrome/gpu/arc_video_accelerator.h
+++ b/chrome/gpu/arc_video_accelerator.h
@@ -53,10 +53,12 @@ struct VideoFormat {
 class ArcVideoAccelerator {
  public:
   enum Error {

[Pawel Osciak, 2016/06/03 03:56:18]

Should we call it Result instead of Error, if NO_ERROR is possible?

[kcwu, 2016/06/03 13:14:15]

Done.

Note, OnError becomes:
void OnError(Result error);

+    NO_ERROR = 0,
     ILLEGAL_STATE = 1,
     INVALID_ARGUMENT = 2,
     UNREADABLE_INPUT = 3,
     PLATFORM_FAILURE = 4,
+    INSUFFICIENT_RESOURCES = 5,
   };
 
   struct Config {
@@ -105,7 +107,7 @@ class ArcVideoAccelerator {
   // Initializes the ArcVideoAccelerator with specific configuration. This
   // must be called before any other methods. This call is synchronous and
   // returns true iff initialization is successful.

[Pawel Osciak, 2016/06/03 03:56:18]

Please update documentation.

-  virtual bool Initialize(const Config& config, Client* client) = 0;
+  virtual Error Initialize(const Config& config, Client* client) = 0;
 
   // Assigns a shared memory to be used for the accelerator at the specified
   // port and index. A buffer must be successfully bound before it can be passed