Remove static thread pointers from CC

cc/quad_culler_unittest.cc

 // Copyright 2012 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/quad_culler.h"
 
 #include "CCAppendQuadsData.h"
 #include "cc/layer_tiling_data.h"
@@ skipping 70 matching lines @@
 {
     occlusionTracker.enterLayer(it);
     QuadCuller quadCuller(quadList, sharedStateList, layer, &occlusionTracker, false, false);
     AppendQuadsData data;
     layer->appendQuads(quadCuller, data);
     occlusionTracker.leaveLayer(it);
     ++it;
 }
 
 #define DECLARE_AND_INITIALIZE_TEST_QUADS               \
-    DebugScopedSetImplThread impl;                      \
     QuadList quadList;                                \
     SharedQuadStateList sharedStateList;              \
     std::vector<LayerImpl*> renderSurfaceLayerList;   \
     WebTransformationMatrix childTransform;             \
     IntSize rootSize = IntSize(300, 300);               \
     IntRect rootRect = IntRect(IntPoint(), rootSize);   \
     IntSize childSize = IntSize(200, 200);              \
     IntRect childRect = IntRect(IntPoint(), childSize);
 
 TEST(QuadCullerTest, verifyNoCulling)
@@ skipping 360 matching lines @@
     appendQuads(quadList, sharedStateList, childLayer.get(), it, occlusionTracker);
     appendQuads(quadList, sharedStateList, rootLayer.get(), it, occlusionTracker);
     EXPECT_EQ(quadList.size(), 9u);
     EXPECT_NEAR(occlusionTracker.overdrawMetrics().pixelsDrawnOpaque(), 0, 1);
     EXPECT_NEAR(occlusionTracker.overdrawMetrics().pixelsDrawnTranslucent(), 0, 1);
     EXPECT_NEAR(occlusionTracker.overdrawMetrics().pixelsCulledForDrawing(), 0, 1);
 }
 
 
 } // namespace