Fix transforms to be preconcat like skia so multiple transforms are accumulat...

gfx/canvas_direct2d_unittest.cc

Index: gfx/canvas_direct2d_unittest.cc
===================================================================
--- gfx/canvas_direct2d_unittest.cc	(revision 53218)
+++ gfx/canvas_direct2d_unittest.cc	(working copy)
@@ -181,3 +181,24 @@
   canvas.FillRectInt(SK_ColorRED, 0, 0, 500, 500);
   canvas.Restore();
 }
+
+TEST(CanvasDirect2D, ClipRectWithScale) {
+  TestWindow window;
+  gfx::CanvasDirect2D canvas(window.rt());
+
+  // Repeat the same rendering as in ClipRect...
+  canvas.Save();
+  canvas.FillRectInt(SK_ColorGREEN, 0, 0, 500, 500);
+  canvas.ClipRectInt(20, 20, 120, 120);
+  canvas.FillRectInt(SK_ColorBLUE, 0, 0, 500, 500);
+  canvas.Restore();
+
+  // ... then translate and scale, clip and fill again relative to the new
+  // origin.
+  canvas.Save();
+  canvas.TranslateInt(150, 150);
+  canvas.ScaleInt(2, 2);
+  canvas.ClipRectInt(10, 10, 110, 110);
+  canvas.FillRectInt(SK_ColorRED, 0, 0, 500, 500);
+  canvas.Restore();
+}