Rendering context information added to SharedQuadState

cc/trees/layer_tree_host_impl.cc

 // 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.
 
 #include "cc/trees/layer_tree_host_impl.h"
 
 #include <algorithm>
 #include <limits>
 
 #include "base/basictypes.h"
@@ skipping 633 matching lines @@
 
   gfx::Rect root_target_rect = root_layer->render_surface()->content_rect();
   float opacity = 1.f;
   SharedQuadState* shared_quad_state = quad_culler.CreateSharedQuadState();
   shared_quad_state->SetAll(gfx::Transform(),
                             root_target_rect.size(),
                             root_target_rect,
                             root_target_rect,
                             false,
                             opacity,
-                            SkXfermode::kSrcOver_Mode);
+                            SkXfermode::kSrcOver_Mode,
+                            root_layer->context_id());

[danakj, 2014/06/13 19:16:03]

I think you want a "not part of a context" id here, these quads are not part of
any layer they're the background behind all the layers.

[troyhildebrandt, 2014/06/13 22:56:36]

Done.

 
   for (Region::Iterator fill_rects(screen_background_color_region);
        fill_rects.has_rect();
        fill_rects.next()) {
     gfx::Rect screen_space_rect = fill_rects.rect();
     gfx::Rect visible_screen_space_rect = screen_space_rect;
     // Skip the quad culler and just append the quads directly to avoid
     // occlusion checks.
     scoped_ptr<SolidColorDrawQuad> quad = SolidColorDrawQuad::Create();
     quad->SetNew(shared_quad_state,
@@ skipping 2483 matching lines @@
 }
 
 void LayerTreeHostImpl::UnregisterPictureLayerImpl(PictureLayerImpl* layer) {
   std::vector<PictureLayerImpl*>::iterator it =
       std::find(picture_layers_.begin(), picture_layers_.end(), layer);
   DCHECK(it != picture_layers_.end());
   picture_layers_.erase(it);
 }
 
 }  // namespace cc