[cc] Add nearest neighbor filtering for TextureLayer.

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>
 
@@ skipping 18 matching lines @@
       client, settings, output_surface, resource_provider));
 }
 
 DelegatingRenderer::DelegatingRenderer(RendererClient* client,
                                        const LayerTreeSettings* settings,
                                        OutputSurface* output_surface,
                                        ResourceProvider* resource_provider)
     : Renderer(client, settings),
       output_surface_(output_surface),
       resource_provider_(resource_provider) {
+  //printf("DelegatingRenderer %p\n", this);
   DCHECK(resource_provider_);
 
   capabilities_.using_partial_swap = false;
   capabilities_.max_texture_size = resource_provider_->max_texture_size();
   capabilities_.best_texture_format = resource_provider_->best_texture_format();
   capabilities_.allow_partial_texture_updates = false;
 
   if (!output_surface_->context_provider()) {
     capabilities_.using_shared_memory_resources = true;
   } else {
@@ skipping 20 matching lines @@
     ResourceProvider::ResourceId id) {
   array->push_back(id);
   return id;
 }
 
 void DelegatingRenderer::DrawFrame(RenderPassList* render_passes_in_draw_order,
                                    float device_scale_factor,
                                    const gfx::Rect& device_viewport_rect,
                                    const gfx::Rect& device_clip_rect,
                                    bool disable_picture_quad_image_filtering) {
+  //printf("DelegatingRenderer::DrawFrame start\n");
   TRACE_EVENT0("cc", "DelegatingRenderer::DrawFrame");
 
   DCHECK(!delegated_frame_data_);
 
   delegated_frame_data_ = make_scoped_ptr(new DelegatedFrameData);
   DelegatedFrameData& out_data = *delegated_frame_data_;
   out_data.device_scale_factor = device_scale_factor;
   // Move the render passes and resources into the |out_frame|.
   out_data.render_pass_list.swap(*render_passes_in_draw_order);
 
@@ skipping 33 matching lines @@
     }
   }
   // We loop visibility to the GPU process, since that's what manages memory.
   // That will allow it to feed us with memory allocations that we can act
   // upon.
   if (context_provider)
     context_provider->ContextSupport()->SetSurfaceVisible(visible());
 }
 
 }  // namespace cc