Combine mask texture parameters into single gfx::RectF

cc/render_pass_draw_quad.h

 // Copyright 2011 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.
 
 #ifndef CC_RENDER_PASS_DRAW_QUAD_H_
 #define CC_RENDER_PASS_DRAW_QUAD_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "cc/cc_export.h"
 #include "cc/draw_quad.h"
 #include "cc/render_pass.h"
 #include "cc/resource_provider.h"
 
 namespace cc {
 
 class CC_EXPORT RenderPassDrawQuad : public DrawQuad {
  public:
   static scoped_ptr<RenderPassDrawQuad> Create();
 
   void SetNew(const SharedQuadState* shared_quad_state,
               gfx::Rect rect,
               RenderPass::Id render_pass_id,
               bool is_replica,
               ResourceProvider::ResourceId mask_resource_id,
               gfx::Rect contents_changed_since_last_frame,
-              float mask_tex_coord_scale_x,
-              float mask_tex_coord_scale_y,
-              float mask_tex_coord_offset_x,
-              float mask_tex_coord_offset_y);
+              gfx::RectF mask_uv_rect);
 
   void SetAll(const SharedQuadState* shared_quad_state,
               gfx::Rect rect,
               gfx::Rect opaque_rect,
               gfx::Rect visible_rect,
               bool needs_blending,
               RenderPass::Id render_pass_id,
               bool is_replica,
               ResourceProvider::ResourceId mask_resource_id,
               gfx::Rect contents_changed_since_last_frame,
-              float mask_tex_coord_scale_x,
-              float mask_tex_coord_scale_y,
-              float mask_tex_coord_offset_x,
-              float mask_tex_coord_offset_y);
+              gfx::RectF mask_uv_rect);
 
   scoped_ptr<RenderPassDrawQuad> Copy(
       const SharedQuadState* copied_shared_quad_state,
       RenderPass::Id copied_render_pass_id) const;
 
   RenderPass::Id render_pass_id;
   bool is_replica;
   ResourceProvider::ResourceId mask_resource_id;
   gfx::Rect contents_changed_since_last_frame;
-  // TODO(danakj): Make these a tex_coord_rect like TileDrawQuad.
-  float mask_tex_coord_scale_x;
-  float mask_tex_coord_scale_y;
-  float mask_tex_coord_offset_x;
-  float mask_tex_coord_offset_y;
+  gfx::RectF mask_uv_rect;
 
   static const RenderPassDrawQuad* MaterialCast(const DrawQuad*);
 private:
   RenderPassDrawQuad();
 };
 
 }
 
 #endif  // CC_RENDER_PASS_DRAW_QUAD_H_