cc: Fix build issues for adding ‘chromium_code’: 1 to cc.gyp and cc_tests.gyp

cc/base/tiling_data_unittest.cc

Index: cc/base/tiling_data_unittest.cc
diff --git a/cc/base/tiling_data_unittest.cc b/cc/base/tiling_data_unittest.cc
index ea141addc4b57b45d9fc22f718c4e13242595563..db2d6f215a9a86e2d370fe963f2b3a8502d30236 100644
--- a/cc/base/tiling_data_unittest.cc
+++ b/cc/base/tiling_data_unittest.cc
@@ -954,7 +954,7 @@ void TestIterate(
       }
       EXPECT_TRUE(found);
     }
-    EXPECT_EQ(0, expected.size());
+    EXPECT_EQ(0u, expected.size());
   }
 
   // Make sure this also works with a difference iterator and an empty ignore.
@@ -973,7 +973,7 @@ void TestIterate(
       }
       EXPECT_TRUE(found);
     }
-    EXPECT_EQ(0, expected.size());
+    EXPECT_EQ(0u, expected.size());
   }
 }
 
@@ -1078,7 +1078,7 @@ void TestDiff(
     }
     EXPECT_TRUE(found);
   }
-  EXPECT_EQ(0, expected.size());
+  EXPECT_EQ(0u, expected.size());
 }
 
 TEST(TilingDataTest, DifferenceIteratorIgnoreGeometry) {