cc: Turn SharedQuadState into a struct-like class similar to DrawQuads.

cc/layer_tree_host_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/layer_tree_host_impl.h"
 
 #include <algorithm>
 
 #include "base/basictypes.h"
 #include "base/debug/trace_event.h"
@@ skipping 448 matching lines @@
             bool layerHasAnimatingTransform = it->screenSpaceTransformIsAnimating() || it->drawTransformIsAnimating();
             if (layerHasAnimatingTransform)
                 drawFrame = false;
         }
 
         occlusionTracker.leaveLayer(it);
     }
 
 #ifndef NDEBUG
     for (size_t i = 0; i < frame.renderPasses.size(); ++i) {
-        for (size_t j = 0; j < frame.renderPasses[i]->quadList().size(); ++j) {
+        for (size_t j = 0; j < frame.renderPasses[i]->quadList().size(); ++j)
             DCHECK(frame.renderPasses[i]->quadList()[j]->shared_quad_state);
-            DCHECK_GE(frame.renderPasses[i]->quadList()[j]->shared_quad_state->id, 0);
-        }
         DCHECK(frame.renderPassesById.contains(frame.renderPasses[i]->id()));
     }
 #endif
 
     if (!m_hasTransparentBackground) {
         frame.renderPasses.back()->setHasTransparentBackground(false);
         frame.renderPasses.back()->appendQuadsToFillScreen(m_rootLayerImpl.get(), m_backgroundColor, occlusionTracker);
     }
 
     if (drawFrame)
@@ skipping 1022 matching lines @@
     ScrollbarAnimationController* scrollbarController = layer->scrollbarAnimationController();
     double monotonicTime = (time - base::TimeTicks()).InSecondsF();
     if (scrollbarController && scrollbarController->animate(monotonicTime))
         m_client->setNeedsRedrawOnImplThread();
 
     for (size_t i = 0; i < layer->children().size(); ++i)
         animateScrollbarsRecursive(layer->children()[i], time);
 }
 
 }  // namespace cc