Update references to Blink's Platform API headers

cc/quads/render_pass_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/quads/render_pass.h"
 
 #include "cc/base/math_util.h"
 #include "cc/quads/checkerboard_draw_quad.h"
 #include "cc/test/geometry_test_utils.h"
 #include "cc/test/render_pass_test_common.h"
 #include "testing/gtest/include/gtest/gtest.h"
-#include "third_party/WebKit/Source/Platform/chromium/public/WebFilterOperations.h"
+#include "third_party/WebKit/public/platform/WebFilterOperations.h"
 #include "third_party/skia/include/effects/SkBlurImageFilter.h"
 #include "ui/gfx/transform.h"
 
 using cc::TestRenderPass;
 
 namespace cc {
 namespace {
 
 struct RenderPassSize {
   // If you add a new field to this class, make sure to add it to the
@@ skipping 52 matching lines @@
   EXPECT_EQ(0u, copy->quad_list.size());
 
   // The copy callback should not be copied/duplicated.
   EXPECT_EQ(0u, copy->copy_callbacks.size());
 
   EXPECT_EQ(sizeof(RenderPassSize), sizeof(RenderPass));
 }
 
 }  // namespace
 }  // namespace cc