Remove unused RenderPassDrawQuad fields

cc/quads/render_pass_draw_quad.h

Index: cc/quads/render_pass_draw_quad.h
diff --git a/cc/quads/render_pass_draw_quad.h b/cc/quads/render_pass_draw_quad.h
index aaf7cf28890d6f8fbed8bd527445d335385bc34c..9cc4ba3d16ba6e6fdd1c9f6ce73424021fa1ee9a 100644
--- a/cc/quads/render_pass_draw_quad.h
+++ b/cc/quads/render_pass_draw_quad.h
@@ -24,9 +24,7 @@ class CC_EXPORT RenderPassDrawQuad : public DrawQuad {
               const gfx::Rect& rect,
               const gfx::Rect& visible_rect,
               RenderPass::Id render_pass_id,
-              bool is_replica,
               ResourceProvider::ResourceId mask_resource_id,
-              const gfx::Rect& contents_changed_since_last_frame,
               const gfx::RectF& mask_uv_rect,
               const FilterOperations& filters,
               const gfx::Vector2dF& filters_scale,
@@ -38,18 +36,14 @@ class CC_EXPORT RenderPassDrawQuad : public DrawQuad {
               const gfx::Rect& visible_rect,
               bool needs_blending,
               RenderPass::Id render_pass_id,
-              bool is_replica,
               ResourceProvider::ResourceId mask_resource_id,
-              const gfx::Rect& contents_changed_since_last_frame,
               const gfx::RectF& mask_uv_rect,
               const FilterOperations& filters,
               const gfx::Vector2dF& filters_scale,
               const FilterOperations& background_filters);
 
   RenderPass::Id render_pass_id;
-  bool is_replica;
   ResourceProvider::ResourceId mask_resource_id;
-  gfx::Rect contents_changed_since_last_frame;
   gfx::RectF mask_uv_rect;
 
   // Post-processing filters, applied to the pixels in the render pass' texture.