android webview: allow cc to fail hardware draw

cc/output/output_surface.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_OUTPUT_OUTPUT_SURFACE_H_
 #define CC_OUTPUT_OUTPUT_SURFACE_H_
 
 #include <deque>
 
 #include "base/basictypes.h"
@@ skipping 50 matching lines @@
 
   OutputSurface(const scoped_refptr<ContextProvider>& context_provider,
                 scoped_ptr<SoftwareOutputDevice> software_device);
 
   ~OutputSurface() override;
 
   struct Capabilities {
     Capabilities()
         : delegated_rendering(false),
           max_frames_pending(0),
-          draw_and_swap_full_viewport_every_frame(false),
           adjust_deadline_for_parent(true),
           uses_default_gl_framebuffer(true),
           flipped_output_surface(false),
           can_force_reclaim_resources(false),
           delegated_sync_points_required(true) {}
     bool delegated_rendering;
     int max_frames_pending;
-    bool draw_and_swap_full_viewport_every_frame;
     // This doesn't handle the <webview> case, but once BeginFrame is
     // supported natively, we shouldn't need adjust_deadline_for_parent.
     bool adjust_deadline_for_parent;
     // Whether this output surface renders to the default OpenGL zero
     // framebuffer or to an offscreen framebuffer.
     bool uses_default_gl_framebuffer;
     // Whether this OutputSurface is flipped or not.
     bool flipped_output_surface;
     // Whether ForceReclaimResources can be called to reclaim all resources
     // from the OutputSurface.
@@ skipping 119 matching lines @@
   bool external_stencil_test_enabled_;
 
   base::WeakPtrFactory<OutputSurface> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(OutputSurface);
 };
 
 }  // namespace cc
 
 #endif  // CC_OUTPUT_OUTPUT_SURFACE_H_