SurfaceAggregator should check whether output is secure when drawin

cc/quads/texture_draw_quad.h

 // 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.
 
 #ifndef CC_QUADS_TEXTURE_DRAW_QUAD_H_
 #define CC_QUADS_TEXTURE_DRAW_QUAD_H_
 
 #include <stddef.h>
 
 #include <memory>
@@ skipping 13 matching lines @@
               const gfx::Rect& rect,
               const gfx::Rect& opaque_rect,
               const gfx::Rect& visible_rect,
               unsigned resource_id,
               bool premultiplied_alpha,
               const gfx::PointF& uv_top_left,
               const gfx::PointF& uv_bottom_right,
               SkColor background_color,
               const float vertex_opacity[4],
               bool y_flipped,
-              bool nearest_neighbor);
+              bool nearest_neighbor,
+              bool secure_output_only);
 
   void SetAll(const SharedQuadState* shared_quad_state,
               const gfx::Rect& rect,
               const gfx::Rect& opaque_rect,
               const gfx::Rect& visible_rect,
               bool needs_blending,
               unsigned resource_id,
               gfx::Size resource_size_in_pixels,
               bool premultiplied_alpha,
               const gfx::PointF& uv_top_left,
               const gfx::PointF& uv_bottom_right,
               SkColor background_color,
               const float vertex_opacity[4],
               bool y_flipped,
-              bool nearest_neighbor);
+              bool nearest_neighbor,
+              bool secure_output_only);
 
   bool premultiplied_alpha;
   gfx::PointF uv_top_left;
   gfx::PointF uv_bottom_right;
   SkColor background_color;
   float vertex_opacity[4];
   bool y_flipped;
   bool nearest_neighbor;
+  bool secure_output_only = false;
 
   struct OverlayResources {
     OverlayResources();
 
     gfx::Size size_in_pixels[Resources::kMaxResourceIdCount];
   };
   OverlayResources overlay_resources;
 
   ResourceId resource_id() const { return resources.ids[kResourceIdIndex]; }
   const gfx::Size& resource_size_in_pixels() const {
     return overlay_resources.size_in_pixels[kResourceIdIndex];
   }
   void set_resource_size_in_pixels(const gfx::Size& size_in_pixels) {
     overlay_resources.size_in_pixels[kResourceIdIndex] = size_in_pixels;
   }
 
   static const TextureDrawQuad* MaterialCast(const DrawQuad*);
 
  private:
   static const size_t kResourceIdIndex = 0;
 
   void ExtendValue(base::trace_event::TracedValue* value) const override;
 };
 
 }  // namespace cc
 
 #endif  // CC_QUADS_TEXTURE_DRAW_QUAD_H_