Update references to Blink's Platform API headers

cc/trees/occlusion_tracker_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 "cc/trees/occlusion_tracker.h"
 
 #include "cc/animation/layer_animation_controller.h"
 #include "cc/base/math_util.h"
 #include "cc/debug/overdraw_metrics.h"
 #include "cc/layers/layer.h"
 #include "cc/layers/layer_impl.h"
 #include "cc/test/animation_test_common.h"
 #include "cc/test/fake_impl_proxy.h"
 #include "cc/test/fake_layer_tree_host_impl.h"
 #include "cc/test/geometry_test_utils.h"
 #include "cc/test/occlusion_tracker_test_common.h"
 #include "cc/trees/layer_tree_host_common.h"
 #include "cc/trees/single_thread_proxy.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
-#include "third_party/WebKit/Source/Platform/chromium/public/WebFilterOperation.h"
-#include "third_party/WebKit/Source/Platform/chromium/public/WebFilterOperations.h"
+#include "third_party/WebKit/public/platform/WebFilterOperation.h"
+#include "third_party/WebKit/public/platform/WebFilterOperations.h"
 #include "ui/gfx/transform.h"
 
 namespace cc {
 namespace {
 
 class TestContentLayer : public Layer {
  public:
   TestContentLayer() : Layer(), override_opaque_contents_rect_(false) {}
 
   virtual bool DrawsContent() const OVERRIDE { return true; }
@@ skipping 4776 matching lines @@
               occlusion.occlusion_from_outside_target().ToString());
     EXPECT_EQ(gfx::Rect(10, 10, 50, 50).ToString(),
               occlusion.occlusion_from_inside_target().ToString());
   }
 };
 
 ALL_OCCLUSIONTRACKER_TEST(OcclusionTrackerTestScaledLayerInSurfaceIsClipped)
 
 }  // namespace
 }  // namespace cc