Implement on demand quad rasterization for PicturePiles.

cc/quads/picture_draw_quad.cc

Index: cc/quads/picture_draw_quad.cc
diff --git a/cc/quads/picture_draw_quad.cc b/cc/quads/picture_draw_quad.cc
new file mode 100644
index 0000000000000000000000000000000000000000..67a0e177011efed2e7160d7eec97f9c3b6b87acf
--- /dev/null
+++ b/cc/quads/picture_draw_quad.cc
@@ -0,0 +1,64 @@
+// Copyright 2013 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/picture_draw_quad.h"
+
+namespace cc {
+
+PictureDrawQuad::PictureDrawQuad() {
+}
+
+PictureDrawQuad::~PictureDrawQuad() {
+}
+
+scoped_ptr<PictureDrawQuad> PictureDrawQuad::Create() {
+  return make_scoped_ptr(new PictureDrawQuad);
+}
+
+void PictureDrawQuad::SetNew(const SharedQuadState* shared_quad_state,
+                             const gfx::Rect& rect,
+                             const gfx::Rect& opaque_rect,
+                             const gfx::RectF& tex_coord_rect,
+                             const gfx::Size& texture_size,
+                             bool swizzle_contents,
+                             const gfx::Rect& content_rect,
+                             float contents_scale,
+                             scoped_refptr<PicturePileImpl> picture_pile) {
+  TileDrawQuadBase::SetNew(shared_quad_state, DrawQuad::PICTURE_CONTENT, rect,
+                           opaque_rect, tex_coord_rect, texture_size,
+                           swizzle_contents);
+  this->content_rect = content_rect;
+  this->contents_scale = contents_scale;
+  this->picture_pile = picture_pile;
+}
+
+void PictureDrawQuad::SetAll(const SharedQuadState* shared_quad_state,
+                             const gfx::Rect& rect,
+                             const gfx::Rect& opaque_rect,
+                             const gfx::Rect& visible_rect,
+                             bool needs_blending,
+                             const gfx::RectF& tex_coord_rect,
+                             const gfx::Size& texture_size,
+                             bool swizzle_contents,
+                             const gfx::Rect& content_rect,
+                             float contents_scale,
+                             scoped_refptr<PicturePileImpl> picture_pile) {
+  TileDrawQuadBase::SetAll(shared_quad_state, DrawQuad::PICTURE_CONTENT, rect,
+                           opaque_rect, visible_rect, needs_blending,
+                           tex_coord_rect, texture_size, swizzle_contents);
+  this->content_rect = content_rect;
+  this->contents_scale = contents_scale;
+  this->picture_pile = picture_pile;
+}
+
+void PictureDrawQuad::IterateResources(
+    const ResourceIteratorCallback& callback) {
+}
+
+const PictureDrawQuad* PictureDrawQuad::MaterialCast(const DrawQuad* quad) {
+  DCHECK(quad->material == DrawQuad::PICTURE_CONTENT);
+  return static_cast<const PictureDrawQuad*>(quad);
+}
+
+}  // namespace cc