cc: Remove legacy accelerated painting path

cc/trees/layer_tree_host.cc

 // Copyright 2011 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/trees/layer_tree_host.h"
 
 #include <algorithm>
 #include <stack>
 
 #include "base/bind.h"
@@ skipping 29 matching lines @@
 
 namespace {
 static int s_num_layer_tree_instances;
 }
 
 namespace cc {
 
 RendererCapabilities::RendererCapabilities()
     : best_texture_format(0),
       using_partial_swap(false),
-      using_accelerated_painting(false),
       using_set_visibility(false),
       using_swap_complete_callback(false),
       using_gpu_memory_manager(false),
       using_egl_image(false),
       allow_partial_texture_updates(false),
       using_offscreen_context3d(false),
       max_texture_size(0),
       avoid_pow2_textures(false),
       using_map_image(false) {}
 
@@ skipping 101 matching lines @@
 LayerTreeHost::OnCreateAndInitializeOutputSurfaceAttempted(bool success) {
   TRACE_EVENT1("cc",
                "LayerTreeHost::OnCreateAndInitializeOutputSurfaceAttempted",
                "success",
                success);
 
   DCHECK(output_surface_lost_);
   if (success) {
     output_surface_lost_ = false;
 
-    // Update settings_ based on capabilities that we got back from the
-    // renderer.
-    settings_.accelerate_painting =
-        proxy_->GetRendererCapabilities().using_accelerated_painting;
-
     // Update settings_ based on partial update capability.
     size_t max_partial_texture_updates = 0;
     if (proxy_->GetRendererCapabilities().allow_partial_texture_updates &&
         !settings_.impl_side_painting) {
       max_partial_texture_updates = std::min(
           settings_.max_partial_texture_updates,
           proxy_->MaxPartialTextureUpdates());
     }
     settings_.max_partial_texture_updates = max_partial_texture_updates;
 
@@ skipping 889 matching lines @@
     bool start_ready_animations = true;
     (*iter).second->UpdateState(start_ready_animations, NULL);
   }
 }
 
 skia::RefPtr<SkPicture> LayerTreeHost::CapturePicture() {
   return proxy_->CapturePicture();
 }
 
 }  // namespace cc