Declaring the weak_ptr_factory in proper order.

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 d4fc0881cb7fe751695f78ca667a57c0a37e23c5..6a6aae8734f434c33b111185f3a6da6d47688b95 100644
--- a/cc/resources/pixel_buffer_raster_worker_pool.h
+++ b/cc/resources/pixel_buffer_raster_worker_pool.h
@@ -128,9 +128,6 @@ class CC_EXPORT PixelBufferRasterWorkerPool : public RasterWorkerPool,
 
   DelayedUniqueNotifier check_for_completed_raster_task_notifier_;
 
-  base::WeakPtrFactory<PixelBufferRasterWorkerPool>
-      raster_finished_weak_ptr_factory_;
-
   scoped_refptr<RasterizerTask> raster_finished_task_;
   scoped_refptr<RasterizerTask> raster_required_for_activation_finished_task_;
 
@@ -139,6 +136,9 @@ class CC_EXPORT PixelBufferRasterWorkerPool : public RasterWorkerPool,
   TaskGraph graph_;
   Task::Vector completed_tasks_;
 
+  base::WeakPtrFactory<PixelBufferRasterWorkerPool>
+      raster_finished_weak_ptr_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(PixelBufferRasterWorkerPool);
 };