Remove ShallowFlushCHROMIUM after resource deletion

cc/resources/resource_provider.cc

Index: cc/resources/resource_provider.cc
diff --git a/cc/resources/resource_provider.cc b/cc/resources/resource_provider.cc
index 6547109d3a5f35a9a409073f1a0bc3d6b93041c2..6a6e80de376180cd022ec8f02be90404e01219b6 100644
--- a/cc/resources/resource_provider.cc
+++ b/cc/resources/resource_provider.cc
@@ -824,9 +824,6 @@ void ResourceProvider::DeleteResourceInternal(ResourceMap::iterator it,
     DCHECK(gl);
     gl->DeleteTextures(1, &resource->gl_id);
     resource->gl_id = 0;
-    // Shallow flush after deleting a texture to make sure the memory is freed
-    // as soon as possible.
-    gl->ShallowFlushCHROMIUM();
   }
   if (resource->shared_bitmap) {
     DCHECK(resource->origin != Resource::EXTERNAL);