Fix SurfaceLayerImpl scale under impl-side painting

cc/layers/surface_layer_impl.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/layers/surface_layer_impl.h"
 
 #include "base/trace_event/trace_event_argument.h"
 #include "cc/debug/debug_colors.h"
 #include "cc/quads/surface_draw_quad.h"
 #include "cc/trees/occlusion.h"
@@ skipping 12 matching lines @@
 }
 
 void SurfaceLayerImpl::SetSurfaceId(SurfaceId surface_id) {
   if (surface_id_ == surface_id)
     return;
 
   surface_id_ = surface_id;
   NoteLayerPropertyChanged();
 }
 
+void SurfaceLayerImpl::SetSurfaceScale(float scale) {
+  if (surface_scale_ == scale)
+    return;
+
+  surface_scale_ = scale;
+  NoteLayerPropertyChanged();
+}
+
+void SurfaceLayerImpl::SetSurfaceSize(const gfx::Size& size) {
+  if (surface_size_ == size)
+    return;
+
+  surface_size_ = size;
+  NoteLayerPropertyChanged();
+}
+
 void SurfaceLayerImpl::PushPropertiesTo(LayerImpl* layer) {
   LayerImpl::PushPropertiesTo(layer);
   SurfaceLayerImpl* layer_impl = static_cast<SurfaceLayerImpl*>(layer);
 
   layer_impl->SetSurfaceId(surface_id_);
+  layer_impl->SetSurfaceSize(surface_size_);
+  layer_impl->SetSurfaceScale(surface_scale_);
 }
 
 void SurfaceLayerImpl::AppendQuads(RenderPass* render_pass,
                                    AppendQuadsData* append_quads_data) {
   SharedQuadState* shared_quad_state =
       render_pass->CreateAndAppendSharedQuadState();
-  PopulateSharedQuadState(shared_quad_state);
+  PopulateScaledSharedQuadState(shared_quad_state, surface_scale_);
 
   AppendDebugBorderQuad(
       render_pass, content_bounds(), shared_quad_state, append_quads_data);

[danakj, 2015/06/04 21:25:18]

i thin this should match the size of the quad.

 
   if (surface_id_.is_null())
     return;
 
-  gfx::Rect quad_rect(content_bounds());
+  gfx::Rect quad_rect(surface_size_);
   gfx::Rect visible_quad_rect =
       draw_properties().occlusion_in_content_space.GetUnoccludedContentRect(
           quad_rect);
   if (visible_quad_rect.IsEmpty())
     return;
   SurfaceDrawQuad* quad =
       render_pass->CreateAndAppendDrawQuad<SurfaceDrawQuad>();
   quad->SetNew(shared_quad_state, quad_rect, visible_quad_rect, surface_id_);
 }
 
 void SurfaceLayerImpl::GetDebugBorderProperties(SkColor* color,
                                                 float* width) const {
   *color = DebugColors::SurfaceLayerBorderColor();
   *width = DebugColors::SurfaceLayerBorderWidth(layer_tree_impl());
 }
 
 void SurfaceLayerImpl::AsValueInto(base::trace_event::TracedValue* dict) const {
   LayerImpl::AsValueInto(dict);
   dict->SetInteger("surface_id", surface_id_.id);
 }
 
 const char* SurfaceLayerImpl::LayerTypeAsString() const {
   return "cc::SurfaceLayerImpl";
 }
 
 }  // namespace cc