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 94ed284f707fbe3f3e62a012d52159ecbdf7ba66..0dfee606d66b1bfb5faedf676c237a6878c37714 100644
--- a/cc/resources/pixel_buffer_raster_worker_pool.h
+++ b/cc/resources/pixel_buffer_raster_worker_pool.h
@@ -21,12 +21,10 @@ class CC_EXPORT PixelBufferRasterWorkerPool : public RasterWorkerPool {
   static scoped_ptr<RasterWorkerPool> Create(
       ResourceProvider* resource_provider,
       ContextProvider* context_provider,
-      size_t num_threads,
       size_t max_transfer_buffer_usage_bytes) {
     return make_scoped_ptr<RasterWorkerPool>(
         new PixelBufferRasterWorkerPool(resource_provider,
                                         context_provider,
-                                        num_threads,
                                         max_transfer_buffer_usage_bytes));
   }
 
@@ -44,7 +42,6 @@ class CC_EXPORT PixelBufferRasterWorkerPool : public RasterWorkerPool {
  private:
   PixelBufferRasterWorkerPool(ResourceProvider* resource_provider,
                               ContextProvider* context_provider,
-                              size_t num_threads,
                               size_t max_transfer_buffer_usage_bytes);
 
   void FlushUploads();