Backed out changeset 690c50d5a4ca (bug 1305941) for build bustage. r=backout on a CLOSED TREE

gfx/ipc/GPUProcessManager.h

@@ -73,7 +73,7 @@ public:
   ~GPUProcessManager();
 
   // If not using a GPU process, launch a new GPU process asynchronously.
-  void LaunchGPUProcess();
+  void EnableGPUProcess();
 
   // Ensure that GPU-bound methods can be used. If no GPU process is being
   // used, or one is launched and ready, this function returns immediately.
@@ -194,7 +194,6 @@ private:
   ipc::TaskFactory<GPUProcessManager> mTaskFactory;
   RefPtr<VsyncIOThreadHolder> mVsyncIOThread;
   uint64_t mNextLayerTreeId;
-  uint32_t mNumProcessAttempts;
 
   nsTArray<RefPtr<RemoteCompositorSession>> mRemoteSessions;
   nsTArray<GPUProcessListener*> mListeners;