Switch to standard integer types in cc/.

cc/trees/occlusion_unittest.cc

 // Copyright 2014 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.h"
 
+#include <stddef.h>
+
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace cc {
 namespace {
 
 TEST(OcclusionTest, HasOcclusion) {
   Occlusion empty;
   EXPECT_FALSE(empty.HasOcclusion());
 
   empty = Occlusion(
@@ skipping 246 matching lines @@
   gfx::Rect half_query_result_left =
       some_occluded_left.GetUnoccludedContentRect(gfx::Rect(10, 0, 10, 20));
   gfx::Rect half_query_result_down =
       some_occluded_down.GetUnoccludedContentRect(gfx::Rect(10, 0, 10, 20));
   EXPECT_EQ(gfx::Rect(10, 0, 10, 10), half_query_result_left);
   EXPECT_EQ(gfx::Rect(10, 0, 10, 10), half_query_result_down);
 }
 
 }  // namespace
 }  // namespace cc