Migrate more functions from MathUtil to gfx::Transform

cc/video_layer_impl.cc

Index: cc/video_layer_impl.cc
diff --git a/cc/video_layer_impl.cc b/cc/video_layer_impl.cc
index 130e6f2460a25cd0b60ce6c9612d6a1c1846addb..6223eec8464f518e55b7110e3917a6dbaf5ea8e2 100644
--- a/cc/video_layer_impl.cc
+++ b/cc/video_layer_impl.cc
@@ -29,11 +29,11 @@ VideoLayerImpl::VideoLayerImpl(LayerTreeImpl* treeImpl, int id, VideoFrameProvid
     , m_externalTextureResource(0)
 {
     // This matrix is the default transformation for stream textures, and flips on the Y axis.
-    m_streamTextureMatrix = MathUtil::createGfxTransform(
+    m_streamTextureMatrix = gfx::Transform(
         1, 0, 0, 0,

[danakj, 2013/01/11 04:14:12]

nit: here too, .0 suffixes

-        0, -1, 0, 0,
+        0, -1, 0, 1,
         0, 0, 1, 0,
-        0, 1, 0, 1);
+        0, 0, 0, 1);
 
     // This only happens during a commit on the compositor thread while the main
     // thread is blocked. That makes this a thread-safe call to set the video
@@ -401,11 +401,11 @@ void VideoLayerImpl::DidReceiveFrame()
 
 void VideoLayerImpl::DidUpdateMatrix(const float matrix[16])
 {
-    m_streamTextureMatrix = MathUtil::createGfxTransform(
-        matrix[0], matrix[1], matrix[2], matrix[3],
-        matrix[4], matrix[5], matrix[6], matrix[7],
-        matrix[8], matrix[9], matrix[10], matrix[11],
-        matrix[12], matrix[13], matrix[14], matrix[15]);
+    m_streamTextureMatrix = gfx::Transform(
+        matrix[0], matrix[4], matrix[8], matrix[12],
+        matrix[1], matrix[5], matrix[9], matrix[13],
+        matrix[2], matrix[6], matrix[10], matrix[14],
+        matrix[3], matrix[7], matrix[11], matrix[15]);
     setNeedsRedraw();
 }