Shared Raster Worker Threads

cc/resources/pixel_buffer_raster_worker_pool.h

Index: cc/resources/pixel_buffer_raster_worker_pool.h
diff --git a/cc/resources/pixel_buffer_raster_worker_pool.h b/cc/resources/pixel_buffer_raster_worker_pool.h
index 0444ed6892eb52c0673d97387a331f6aa5be74e0..32c48da0007d401b8f25db3de5b14aefdc76bf2b 100644
--- a/cc/resources/pixel_buffer_raster_worker_pool.h
+++ b/cc/resources/pixel_buffer_raster_worker_pool.h
@@ -20,11 +20,9 @@ class CC_EXPORT PixelBufferRasterWorkerPool : public RasterWorkerPool {
 
   static scoped_ptr<RasterWorkerPool> Create(
       ResourceProvider* resource_provider,
-      size_t num_threads,
       size_t max_transfer_buffer_usage_bytes) {
     return make_scoped_ptr<RasterWorkerPool>(
         new PixelBufferRasterWorkerPool(resource_provider,
-                                        num_threads,
                                         max_transfer_buffer_usage_bytes));
   }
 
@@ -41,7 +39,6 @@ class CC_EXPORT PixelBufferRasterWorkerPool : public RasterWorkerPool {
 
  private:
   PixelBufferRasterWorkerPool(ResourceProvider* resource_provider,
-                              size_t num_threads,
                               size_t max_transfer_buffer_usage_bytes);
 
   void FlushUploads();