cc: Remove the software compositing bool from PrepareTextureMailbox

cc/output/delegating_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/delegating_renderer.h"
 
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/memory/ptr_util.h"
 #include "base/trace_event/trace_event.h"
 #include "cc/output/context_provider.h"
 #include "cc/quads/draw_quad.h"
 #include "cc/quads/render_pass.h"
 #include "cc/resources/resource_provider.h"
 #include "gpu/command_buffer/client/context_support.h"
 #include "gpu/command_buffer/client/gles2_interface.h"
 
 
 namespace cc {
 
 DelegatingRenderer::DelegatingRenderer(OutputSurface* output_surface,
                                        ResourceProvider* resource_provider)
     : output_surface_(output_surface), resource_provider_(resource_provider) {
   DCHECK(resource_provider_);
 
   capabilities_.max_texture_size = resource_provider_->max_texture_size();
   capabilities_.best_texture_format = resource_provider_->best_texture_format();
-  capabilities_.using_shared_memory_resources =
-      !output_surface_->context_provider();
 }
 
 DelegatingRenderer::~DelegatingRenderer() = default;
 
 void DelegatingRenderer::DrawFrame(
     RenderPassList* render_passes_in_draw_order) {
   TRACE_EVENT0("cc", "DelegatingRenderer::DrawFrame");
 
   delegated_frame_data_ = base::WrapUnique(new DelegatedFrameData);
   DelegatedFrameData& out_data = *delegated_frame_data_;
@@ skipping 13 matching lines @@
 
 void DelegatingRenderer::SwapBuffers(CompositorFrameMetadata metadata) {
   TRACE_EVENT0("cc,benchmark", "DelegatingRenderer::SwapBuffers");
   CompositorFrame compositor_frame;
   compositor_frame.metadata = std::move(metadata);
   compositor_frame.delegated_frame_data = std::move(delegated_frame_data_);
   output_surface_->SwapBuffers(std::move(compositor_frame));
 }
 
 }  // namespace cc