Remove offscreen compositor contexts.

cc/output/renderer.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_RENDERER_H_
 #define CC_OUTPUT_RENDERER_H_
 
 #include "base/basictypes.h"
 #include "cc/base/cc_export.h"
 #include "cc/quads/render_pass.h"
 #include "cc/trees/layer_tree_host.h"
 
 namespace cc {
 
 class CompositorFrameAck;
 class CompositorFrameMetadata;
 class ScopedResource;
 
 struct RendererCapabilitiesImpl {
   RendererCapabilitiesImpl();
   ~RendererCapabilitiesImpl();
 
   // Capabilities copied to main thread.
   ResourceFormat best_texture_format;
   bool allow_partial_texture_updates;
-  bool using_offscreen_context3d;
   int max_texture_size;
   bool using_shared_memory_resources;
 
   // Capabilities used on compositor thread only.
   bool using_partial_swap;
   bool using_egl_image;
   bool avoid_pow2_textures;
   bool using_map_image;
   bool using_discard_framebuffer;
   bool allow_rasterize_on_demand;
@@ skipping 17 matching lines @@
   virtual void DecideRenderPassAllocationsForFrame(
       const RenderPassList& render_passes_in_draw_order) {}
   virtual bool HasAllocatedResourcesForTesting(RenderPass::Id id) const;
 
   // This passes ownership of the render passes to the renderer. It should
   // consume them, and empty the list. The parameters here may change from frame
   // to frame and should not be cached.
   // The |device_viewport_rect| and |device_clip_rect| are in non-y-flipped
   // window space.
   virtual void DrawFrame(RenderPassList* render_passes_in_draw_order,
-                         ContextProvider* offscreen_context_provider,
                          float device_scale_factor,
                          const gfx::Rect& device_viewport_rect,
                          const gfx::Rect& device_clip_rect,
                          bool disable_picture_quad_image_filtering) = 0;
 
   // Waits for rendering to finish.
   virtual void Finish() = 0;
 
   virtual void DoNoOp() {}
 
@@ skipping 18 matching lines @@
   RendererClient* client_;
   const LayerTreeSettings* settings_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(Renderer);
 };
 
 }  // namespace cc
 
 #endif  // CC_OUTPUT_RENDERER_H_