cc: Move UnoccludedContentRect to Occlusion.

cc/layers/delegated_renderer_layer_impl.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/layers/delegated_renderer_layer_impl.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 426 matching lines @@
     DCHECK(output_shared_quad_state);
 
     gfx::Transform quad_content_to_delegated_target_space =
         output_shared_quad_state->content_to_target_transform;
     if (!is_root_delegated_render_pass) {
       quad_content_to_delegated_target_space.ConcatTransform(
           render_pass->transform_to_root_target);
       quad_content_to_delegated_target_space.ConcatTransform(draw_transform());
     }
 
-    gfx::Rect quad_visible_rect = occlusion_tracker.UnoccludedContentRect(
-        delegated_quad->visible_rect, quad_content_to_delegated_target_space);
+    gfx::Rect quad_visible_rect =
+        occlusion_tracker.GetCurrentOcclusionForLayer(

[danakj, 2014/09/18 01:48:45]

Are you going to pass the Occlusion instead of the OcclusionTracker in another
CL? Then you have to touch all the layer types twice, maybe easier to just do it
now.

Then again, you already wrote this.

[vmpstr, 2014/09/18 21:45:19]

Yeah, I wanna do it separately so if the world explodes, I know which part did
it.

+                              quad_content_to_delegated_target_space)
+            .GetUnoccludedContentRect(delegated_quad->visible_rect);
 
     if (quad_visible_rect.IsEmpty())
       continue;
 
     if (delegated_quad->material != DrawQuad::RENDER_PASS) {
       DrawQuad* output_quad = render_pass->CopyFromAndAppendDrawQuad(
           delegated_quad, output_shared_quad_state);
       output_quad->visible_rect = quad_visible_rect;
     } else {
       RenderPassId delegated_contributing_render_pass_id =
@@ skipping 32 matching lines @@
   if (own_child_id_) {
     ResourceProvider* provider = layer_tree_impl()->resource_provider();
     provider->DestroyChild(child_id_);
   }
 
   resources_.clear();
   child_id_ = 0;
 }
 
 }  // namespace cc