cc: Don't leak a ref to SkColorFilter.

cc/output/gl_renderer.cc

 // Copyright 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/output/gl_renderer.h"
 
 #include <algorithm>
 #include <limits>
 #include <set>
 #include <string>
@@ skipping 734 matching lines @@
     if (disable_blending)
       SetBlendEnabled(true);
   }
 
   // TODO(senorblanco): Cache this value so that we don't have to do it for both
   // the surface and its replica.  Apply filters to the contents texture.
   SkBitmap filter_bitmap;
   SkScalar color_matrix[20];
   bool use_color_matrix = false;
   if (quad->filter) {
-    SkColorFilter* cf;
-    if ((quad->filter->asColorFilter(&cf)) && cf->asColorMatrix(color_matrix) &&
-        !quad->filter->getInput(0)) {
+    skia::RefPtr<SkColorFilter> cf;
+    quad->filter->asColorFilter(cf.ReceiveAndAdoptRef());
+
+    if (cf && cf->asColorMatrix(color_matrix) && !quad->filter->getInput(0)) {
       // We have a single color matrix as a filter; apply it locally
       // in the compositor.
       use_color_matrix = true;
     } else {
       filter_bitmap =
           ApplyImageFilter(this, quad->filter.get(), contents_texture);
     }
   } else if (!quad->filters.IsEmpty()) {
     FilterOperations optimized_filters =
         RenderSurfaceFilters::Optimize(quad->filters);
@@ skipping 2320 matching lines @@
   std::string unique_context_name = base::StringPrintf(
       "%s-Offscreen-%p",
       Settings().compositor_name.c_str(),
       context_);
   resource_provider()->offscreen_context_provider()->Context3d()->
     pushGroupMarkerEXT(unique_context_name.c_str());
 }
 
 
 }  // namespace cc