cc: Moving anti-aliasing decision to parent compositor.

cc/draw_quad.h

Index: cc/draw_quad.h
diff --git a/cc/draw_quad.h b/cc/draw_quad.h
index dc87a5d96a0d2ffe4a55b3819ca5f4db5733d058..81af70a774aa6ce1e0565eb77f6b297a7602e597 100644
--- a/cc/draw_quad.h
+++ b/cc/draw_quad.h
@@ -66,11 +66,38 @@ class CC_EXPORT DrawQuad {
   const SharedQuadState* shared_quad_state;
 
   bool IsDebugQuad() const { return material == DEBUG_BORDER; }
+
   bool ShouldDrawWithBlending() const {
     return needs_blending || shared_quad_state->opacity < 1.0f ||
         !opaque_rect.Contains(visible_rect);
   }
 
+  // Is the left edge of this tile aligned with the originating layer's 

[reveman, 2013/02/26 01:49:28]

nit: remove whitespace at end of line.

[ernstm, 2013/02/26 18:10:57]

Done.

+  // left edge?
+  bool IsLeftEdge() const { return !rect.x(); }
+
+  // Is the top edge of this tile aligned with the originating layer's 

[reveman, 2013/02/26 01:49:28]

nit: remove whitespace at end of line.

[ernstm, 2013/02/26 18:10:57]

Done.

+  // top edge?
+  bool IsTopEdge() const { return !rect.y(); }
+
+  // Is the right edge of this tile aligned with the originating layer's 

[reveman, 2013/02/26 01:49:28]

nit: remove whitespace at end of line.

[ernstm, 2013/02/26 18:10:57]

Done.

+  // right edge?
+  bool IsRightEdge() const {
+    return rect.right() == shared_quad_state->content_bounds.width(); 
+  }
+
+  // Is the bottom edge of this tile aligned with the originating layer's 

[reveman, 2013/02/26 01:49:28]

nit: remove whitespace at end of line.

[ernstm, 2013/02/26 18:10:57]

Done.

+  // bottom edge?
+  bool IsBottomEdge() const { 
+    return rect.bottom() == shared_quad_state->content_bounds.height(); 
+  }
+
+  // Is any edge of this tile aligned with the originating layer's 

[reveman, 2013/02/26 01:49:28]

nit: remove whitespace at end of line.

[ernstm, 2013/02/26 18:10:57]

Done.

+  // corresponding edge?
+  bool IsEdge() const { 

[reveman, 2013/02/26 01:49:28]

nit: remove whitespace at end of line.

[ernstm, 2013/02/26 18:10:57]

Done.

[ernstm, 2013/02/26 18:10:57]

Done.

+    return IsLeftEdge() || IsTopEdge() || IsRightEdge() || IsBottomEdge(); 

[reveman, 2013/02/26 01:49:28]

nit: remove whitespace at end of line.

[ernstm, 2013/02/26 18:10:57]

Done.

[ernstm, 2013/02/26 18:10:57]

Done.

+  }
+
   virtual void AppendResources(ResourceProvider::ResourceIdArray* resources);
 
  protected: