cc: Create a Region class that wraps SkRegion, to replace use of WebCore::Region.

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 "config.h"
 
 #include "cc/render_surface_impl.h"
 
+#include <algorithm>
+
 #include "base/logging.h"
 #include "base/stringprintf.h"
 #include "cc/damage_tracker.h"
 #include "cc/debug_border_draw_quad.h"
 #include "cc/delegated_renderer_layer_impl.h"
 #include "cc/layer_impl.h"
 #include "cc/math_util.h"
 #include "cc/quad_sink.h"
 #include "cc/render_pass.h"
 #include "cc/render_pass_draw_quad.h"
@@ skipping 226 matching lines @@
     }
 
     ResourceProvider::ResourceId maskResourceId = maskLayer ? maskLayer->contentsResourceId() : 0;
     gfx::Rect contentsChangedSinceLastFrame = contentsChanged() ? m_contentRect : gfx::Rect();
 
     quadSink.append(RenderPassDrawQuad::create(sharedQuadState, contentRect(), renderPassId, forReplica, maskResourceId, contentsChangedSinceLastFrame,
                                                  maskTexCoordScaleX, maskTexCoordScaleY, maskTexCoordOffsetX, maskTexCoordOffsetY).PassAs<DrawQuad>(), appendQuadsData);
 }
 
 }  // namespace cc