[#2] Pass gfx structs by const ref (gfx::Rect, gfx::RectF)

cc/quads/texture_draw_quad.cc

 // Copyright 2012 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/texture_draw_quad.h"
 
 #include "base/logging.h"
 #include "base/values.h"
 #include "cc/base/math_util.h"
 #include "ui/gfx/vector2d_f.h"
 
 namespace cc {
 
 TextureDrawQuad::TextureDrawQuad()
     : resource_id(0),
       premultiplied_alpha(false),
       background_color(SK_ColorTRANSPARENT),
       flipped(false) {
   this->vertex_opacity[0] = 0.f;
   this->vertex_opacity[1] = 0.f;
   this->vertex_opacity[2] = 0.f;
   this->vertex_opacity[3] = 0.f;
 }
 
 scoped_ptr<TextureDrawQuad> TextureDrawQuad::Create() {
   return make_scoped_ptr(new TextureDrawQuad);
 }
 
 void TextureDrawQuad::SetNew(const SharedQuadState* shared_quad_state,
-                             gfx::Rect rect, gfx::Rect opaque_rect,
+                             const gfx::Rect& rect,
+                             const gfx::Rect& opaque_rect,
                              unsigned resource_id, bool premultiplied_alpha,
                              gfx::PointF uv_top_left,
                              gfx::PointF uv_bottom_right,
                              SkColor background_color,
                              const float vertex_opacity[4],
                              bool flipped) {
   gfx::Rect visible_rect = rect;
   bool needs_blending = vertex_opacity[0] != 1.0f || vertex_opacity[1] != 1.0f
       || vertex_opacity[2] != 1.0f || vertex_opacity[3] != 1.0f;
   DrawQuad::SetAll(shared_quad_state, DrawQuad::TEXTURE_CONTENT, rect,
                    opaque_rect, visible_rect, needs_blending);
   this->resource_id = resource_id;
   this->premultiplied_alpha = premultiplied_alpha;
   this->uv_top_left = uv_top_left;
   this->uv_bottom_right = uv_bottom_right;
   this->background_color = background_color;
   this->vertex_opacity[0] = vertex_opacity[0];
   this->vertex_opacity[1] = vertex_opacity[1];
   this->vertex_opacity[2] = vertex_opacity[2];
   this->vertex_opacity[3] = vertex_opacity[3];
   this->flipped = flipped;
 }
 
 void TextureDrawQuad::SetAll(const SharedQuadState* shared_quad_state,
-                             gfx::Rect rect, gfx::Rect opaque_rect,
-                             gfx::Rect visible_rect, bool needs_blending,
+                             const gfx::Rect& rect,
+                             const gfx::Rect& opaque_rect,
+                             const gfx::Rect& visible_rect, bool needs_blending,
                              unsigned resource_id, bool premultiplied_alpha,
                              gfx::PointF uv_top_left,
                              gfx::PointF uv_bottom_right,
                              SkColor background_color,
                              const float vertex_opacity[4],
                              bool flipped) {
   DrawQuad::SetAll(shared_quad_state, DrawQuad::TEXTURE_CONTENT, rect,
                    opaque_rect, visible_rect, needs_blending);
   this->resource_id = resource_id;
   this->premultiplied_alpha = premultiplied_alpha;
@@ skipping 24 matching lines @@
   value->Set("uv_bottom_right", MathUtil::AsValue(uv_bottom_right).release());
   value->SetInteger("background_color", background_color);
   scoped_ptr<base::ListValue> vertex_opacity_value(new base::ListValue);
   for (size_t i = 0; i < 4; ++i)
     vertex_opacity_value->AppendDouble(vertex_opacity[i]);
   value->Set("vertex_opacity", vertex_opacity_value.release());
   value->SetBoolean("flipped", flipped);
 }
 
 }  // namespace cc