Migrate more functions from MathUtil to gfx::Transform

cc/layer_unittest.cc

Index: cc/layer_unittest.cc
diff --git a/cc/layer_unittest.cc b/cc/layer_unittest.cc
index cfd62cc62faa41de57d30f842866e14082aa1a9f..d110c4162cf3f24c0720e3e34b80fd189781d468 100644
--- a/cc/layer_unittest.cc
+++ b/cc/layer_unittest.cc
@@ -18,6 +18,7 @@
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gfx/transform.h"
+#include "ui/gfx/transform_util.h"
 
 using ::testing::AnyNumber;
 using ::testing::AtLeast;
@@ -533,12 +534,12 @@ TEST_F(LayerTest, checkPropertyChangeCausesCorrectBehavior)
     EXPECT_SET_NEEDS_COMMIT(1, testLayer->setOpacity(0.5));
     EXPECT_SET_NEEDS_COMMIT(1, testLayer->setContentsOpaque(true));
     EXPECT_SET_NEEDS_COMMIT(1, testLayer->setPosition(gfx::PointF(4, 9)));
-    EXPECT_SET_NEEDS_COMMIT(1, testLayer->setSublayerTransform(MathUtil::createGfxTransform(0, 0, 0, 0, 0, 0)));
+    EXPECT_SET_NEEDS_COMMIT(1, testLayer->setSublayerTransform(gfx::CreateGfxTransform(0, 0, 0, 0, 0, 0)));
     EXPECT_SET_NEEDS_COMMIT(1, testLayer->setScrollable(true));
     EXPECT_SET_NEEDS_COMMIT(1, testLayer->setShouldScrollOnMainThread(true));
     EXPECT_SET_NEEDS_COMMIT(1, testLayer->setNonFastScrollableRegion(gfx::Rect(1, 1, 2, 2)));
     EXPECT_SET_NEEDS_COMMIT(1, testLayer->setHaveWheelEventHandlers(true));
-    EXPECT_SET_NEEDS_COMMIT(1, testLayer->setTransform(MathUtil::createGfxTransform(0, 0, 0, 0, 0, 0)));
+    EXPECT_SET_NEEDS_COMMIT(1, testLayer->setTransform(gfx::CreateGfxTransform(0, 0, 0, 0, 0, 0)));
     EXPECT_SET_NEEDS_COMMIT(1, testLayer->setDoubleSided(false));
     EXPECT_SET_NEEDS_COMMIT(1, testLayer->setDebugName("Test Layer"));
     EXPECT_SET_NEEDS_COMMIT(1, testLayer->setDrawCheckerboardForMissingTiles(!testLayer->drawCheckerboardForMissingTiles()));