Apply skew on both axes together rather than sequentially on Compositor thread

mojo/converters/surfaces/tests/surface_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/quads/debug_border_draw_quad.h"
 #include "cc/quads/render_pass.h"
 #include "cc/quads/solid_color_draw_quad.h"
 #include "cc/quads/surface_draw_quad.h"
 #include "cc/quads/texture_draw_quad.h"
 #include "cc/resources/resource_provider.h"
@@ skipping 190 matching lines @@
   EXPECT_EQ(opacity, mojo_sqs->opacity);
   EXPECT_EQ(sorting_context_id, mojo_sqs->sorting_context_id);
 }
 
 TEST(SurfaceLibTest, RenderPass) {
   scoped_ptr<cc::RenderPass> pass = cc::RenderPass::Create();
   cc::RenderPassId pass_id(1, 6);
   gfx::Rect output_rect(4, 9, 13, 71);
   gfx::Rect damage_rect(9, 17, 41, 45);
   gfx::Transform transform_to_root_target;
-  transform_to_root_target.SkewY(43.0);
+  transform_to_root_target.Skew(0.0, 43.0);
   bool has_transparent_background = false;
   pass->SetAll(pass_id,
                output_rect,
                damage_rect,
                transform_to_root_target,
                has_transparent_background);
 
   gfx::Transform quad_to_target_transform;
   quad_to_target_transform.Scale3d(0.3f, 0.7f, 0.9f);
   gfx::Size quad_layer_bounds(57, 39);
@@ skipping 245 matching lines @@
   EXPECT_EQ(needs_blending, mojo_quad->needs_blending);
   ASSERT_TRUE(mojo_quad->debug_border_quad_state);
   DebugBorderQuadStatePtr& mojo_debug_border_state =
       mojo_quad->debug_border_quad_state;
   EXPECT_EQ(Color::From(arbitrary_color), mojo_debug_border_state->color);
   EXPECT_EQ(width, mojo_debug_border_state->width);
 }
 
 }  // namespace
 }  // namespace mojo