cc: Move occlusion debug rects into the debug layer borders.

cc/layers/layer_impl.cc

Index: cc/layers/layer_impl.cc
diff --git a/cc/layers/layer_impl.cc b/cc/layers/layer_impl.cc
index f74228bdacf694cca1ac36e0c2503da2ba4fc510..c55e768b41c3c37df92696d1f9a5d519c7c71e93 100644
--- a/cc/layers/layer_impl.cc
+++ b/cc/layers/layer_impl.cc
@@ -327,6 +327,20 @@ void LayerImpl::AppendDebugBorderQuad(RenderPass* render_pass,
       render_pass->CreateAndAppendDrawQuad<DebugBorderDrawQuad>();
   debug_border_quad->SetNew(
       shared_quad_state, quad_rect, visible_quad_rect, color, width);
+  if (contents_opaque()) {
+    // The inner fill is more transparent then the border.

[vmpstr, 2015/02/11 22:22:22]

nit: than

Can you also elaborate on the shape of the fill in the comment?

[danakj, 2015/02/11 23:44:01]

Done.

+    SkColor fill_color =
+        SkColorSetA(color, static_cast<uint8_t>(SkColorGetA(color) * 0.3f));
+    float fill_width = width * 3;
+    gfx::Rect fill_rect = quad_rect;
+    fill_rect.Inset(fill_width / 2.f, fill_width / 2.f);
+    gfx::Rect visible_fill_rect =
+        gfx::IntersectRects(visible_quad_rect, fill_rect);
+    DebugBorderDrawQuad* fill_quad =
+        render_pass->CreateAndAppendDrawQuad<DebugBorderDrawQuad>();
+    fill_quad->SetNew(shared_quad_state, fill_rect, visible_fill_rect,
+                      fill_color, fill_width);
+  }
 }
 
 bool LayerImpl::HasDelegatedContent() const {