Remove offscreen compositor contexts.

cc/output/direct_renderer.cc

 // 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.
 
 #include "cc/output/direct_renderer.h"
 
 #include <utility>
 #include <vector>
 
 #include "base/containers/hash_tables.h"
@@ skipping 40 matching lines @@
   // Map from ([-1, -1] to [1, 1]) -> ([0, 0] to [1, 1])
   canvas.Translate3d(0.5, 0.5, 0.5);
   canvas.Scale3d(0.5, 0.5, 0.5);
 
   return canvas;
 }
 
 namespace cc {
 
 DirectRenderer::DrawingFrame::DrawingFrame()
-    : root_render_pass(NULL),
-      current_render_pass(NULL),
-      current_texture(NULL),
-      offscreen_context_provider(NULL) {}
+    : root_render_pass(NULL), current_render_pass(NULL), current_texture(NULL) {
+}
 
 DirectRenderer::DrawingFrame::~DrawingFrame() {}
 
 //
 // static
 gfx::RectF DirectRenderer::QuadVertexRect() {
   return gfx::RectF(-0.5f, -0.5f, 1.f, 1.f);
 }
 
 // static
@@ skipping 116 matching lines @@
     if (!render_pass_textures_.contains(render_passes_in_draw_order[i]->id)) {
       scoped_ptr<ScopedResource> texture =
           ScopedResource::Create(resource_provider_);
       render_pass_textures_.set(render_passes_in_draw_order[i]->id,
                               texture.Pass());
     }
   }
 }
 
 void DirectRenderer::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) {
   TRACE_EVENT0("cc", "DirectRenderer::DrawFrame");
   UMA_HISTOGRAM_COUNTS("Renderer4.renderPassCount",
                        render_passes_in_draw_order->size());
 
   const RenderPass* root_render_pass = render_passes_in_draw_order->back();
   DCHECK(root_render_pass);
 
   DrawingFrame frame;
   frame.root_render_pass = root_render_pass;
   frame.root_damage_rect = Capabilities().using_partial_swap
                                ? root_render_pass->damage_rect
                                : root_render_pass->output_rect;
   frame.root_damage_rect.Intersect(gfx::Rect(device_viewport_rect.size()));
   frame.device_viewport_rect = device_viewport_rect;
   frame.device_clip_rect = device_clip_rect;
-  frame.offscreen_context_provider = offscreen_context_provider;
   frame.disable_picture_quad_image_filtering =
       disable_picture_quad_image_filtering;
 
   overlay_processor_->ProcessForOverlays(render_passes_in_draw_order,
                                          &frame.overlay_list);
 
   EnsureBackbuffer();
 
   // Only reshape when we know we are going to draw. Otherwise, the reshape
   // can leave the window at the wrong size if we never draw and the proper
@@ skipping 221 matching lines @@
   ScopedResource* texture = render_pass_textures_.get(id);
   return texture && texture->id();
 }
 
 // static
 gfx::Size DirectRenderer::RenderPassTextureSize(const RenderPass* render_pass) {
   return render_pass->output_rect.size();
 }
 
 }  // namespace cc