Implement filter effects in Core Animation using CAFilters.

ui/gl/ca_renderer_layer_params.h

Index: ui/gl/ca_renderer_layer_params.h
diff --git a/ui/gl/ca_renderer_layer_params.h b/ui/gl/ca_renderer_layer_params.h
index 22ba8aacf8706b8a736da5a39da47d78e231bf2d..9a55767512169d44fba4827af21198a2dcba0db3 100644
--- a/ui/gl/ca_renderer_layer_params.h
+++ b/ui/gl/ca_renderer_layer_params.h
@@ -69,6 +69,8 @@ struct GL_EXPORT CARendererLayerParams {
     float amount = 0;
     gfx::Point drop_shadow_offset;
     SkColor drop_shadow_color = 0;
+
+    bool operator==(const FilterEffect& rhs) const;
   };
   using FilterEffects = std::vector<FilterEffect>;
 
@@ -77,4 +79,7 @@ struct GL_EXPORT CARendererLayerParams {
 
 }  // namespace ui
 
+bool operator==(const ui::CARendererLayerParams::FilterEffect& a,
+                const ui::CARendererLayerParams::FilterEffect& b);

[piman, 2016/07/26 20:42:43]

Why the need for this one? ADL should find FilterEffect.operator== ?

[erikchen, 2016/07/26 21:49:26]

I thought I needed this for std::vector<T>::operator==, but I removed it and no
longer see any problems.

+
 #endif  // UI_GL_CA_RENDERER_LAYER_PARAMS_H_