Add skia::RefPtr class to wrap ref counted classes from Skia.

cc/render_surface_impl.cc

 // Copyright 2011 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/render_surface_impl.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/stringprintf.h"
@@ skipping 169 matching lines @@
 }
 
 void RenderSurfaceImpl::appendRenderPasses(RenderPassSink& passSink)
 {
     for (size_t i = 0; i < m_contributingDelegatedRenderPassLayerList.size(); ++i)
         m_contributingDelegatedRenderPassLayerList[i]->appendContributingRenderPasses(passSink);
 
     scoped_ptr<RenderPass> pass = RenderPass::Create();
     pass->SetNew(renderPassId(), m_contentRect, m_damageTracker->currentDamageRect(), m_screenSpaceTransform);
     pass->filters = m_owningLayer->filters();
-    SkRefCnt_SafeAssign(pass->filter, m_owningLayer->filter());
+    pass->filter = m_owningLayer->filter();
     pass->background_filters = m_owningLayer->backgroundFilters();
     passSink.appendRenderPass(pass.Pass());
 }
 
 void RenderSurfaceImpl::appendQuads(QuadSink& quadSink, AppendQuadsData& appendQuadsData, bool forReplica, RenderPass::Id renderPassId)
 {
     DCHECK(!forReplica || m_owningLayer->hasReplica());
 
     gfx::Rect clippedRectInTarget = computeClippedRectInTarget(m_owningLayer);
     const gfx::Transform& drawTransform = forReplica ? m_replicaDrawTransform : m_drawTransform;
@@ skipping 38 matching lines @@
     ResourceProvider::ResourceId maskResourceId = maskLayer ? maskLayer->contentsResourceId() : 0;
     gfx::Rect contentsChangedSinceLastFrame = contentsChanged() ? m_contentRect : gfx::Rect();
 
     scoped_ptr<RenderPassDrawQuad> quad = RenderPassDrawQuad::Create();
     quad->SetNew(sharedQuadState, contentRect(), renderPassId, forReplica, maskResourceId, contentsChangedSinceLastFrame,
                  maskTexCoordScaleX, maskTexCoordScaleY, maskTexCoordOffsetX, maskTexCoordOffsetY);
     quadSink.append(quad.PassAs<DrawQuad>(), appendQuadsData);
 }
 
 }  // namespace cc