cc: Remove opaque flags from SharedQuadState and DrawQuad

cc/tiled_layer_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/tiled_layer_impl.h"
 
 #include "base/basictypes.h"
 #include "base/stringprintf.h"
 #include "cc/append_quads_data.h"
 #include "cc/checkerboard_draw_quad.h"
@@ skipping 148 matching lines @@
                         checkerColor = tile ? DebugColors::InvalidatedTileCheckerboardColor() : DebugColors::EvictedTileCheckerboardColor();
                     else
                         checkerColor = kTileCheckerboardColor;
 
                     appendQuadsData.hadMissingTiles |= quadSink.append(CheckerboardDrawQuad::create(sharedQuadState, tileRect, checkerColor).PassAs<DrawQuad>(), appendQuadsData);
                 } else
                     appendQuadsData.hadMissingTiles |= quadSink.append(SolidColorDrawQuad::create(sharedQuadState, tileRect, backgroundColor()).PassAs<DrawQuad>(), appendQuadsData);
                 continue;
             }
 
-            gfx::Rect tileOpaqueRect = tile->opaqueRect();
-            tileOpaqueRect.Intersect(contentRect);
+            gfx::Rect tileOpaqueRect = contentsOpaque() ? tileRect : gfx::IntersectRects(tile->opaqueRect(), contentRect);
 
             // Keep track of how the top left has moved, so the texture can be
             // offset the same amount.
             gfx::Vector2d displayOffset = tileRect.origin() - displayRect.origin();
             gfx::Vector2d textureOffset = m_tiler->textureOffset(i, j) + displayOffset;
             float tileWidth = static_cast<float>(m_tiler->tileSize().width());
             float tileHeight = static_cast<float>(m_tiler->tileSize().height());
             gfx::Size textureSize(tileWidth, tileHeight);
 
             bool clipped = false;
@@ skipping 53 matching lines @@
 {
     m_tiler->reset();
 }
 
 const char* TiledLayerImpl::layerTypeAsString() const
 {
     return "ContentLayer";
 }
 
 }  // namespace cc