cc: Move --num-raster-threads setting to LayerTreeSettings.

cc/layer_tree_host_impl.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/layer_tree_host_impl.h"
 
 #include <algorithm>
 
 #include "base/basictypes.h"
 #include "base/debug/trace_event.h"
@@ skipping 988 matching lines @@
     m_context.reset();
 
     if (!context->bindToClient(this))
         return false;
 
     scoped_ptr<ResourceProvider> resourceProvider = ResourceProvider::create(context.get());
     if (!resourceProvider)
         return false;
 
     if (m_settings.implSidePainting)
-      m_tileManager.reset(new TileManager(this, resourceProvider.get()));
+      m_tileManager.reset(new TileManager(this, resourceProvider.get(), m_settings.numRasterThreads));
 
     if (context->context3D())
         m_renderer = GLRenderer::create(this, resourceProvider.get());
     else if (context->softwareDevice())
         m_renderer = SoftwareRenderer::create(this, resourceProvider.get(), context->softwareDevice());
     if (!m_renderer)
         return false;
 
     m_resourceProvider = resourceProvider.Pass();
     m_context = context.Pass();
@@ skipping 611 matching lines @@
     ScrollbarAnimationController* scrollbarController = layer->scrollbarAnimationController();
     double monotonicTime = (time - base::TimeTicks()).InSecondsF();
     if (scrollbarController && scrollbarController->animate(monotonicTime))
         m_client->setNeedsRedrawOnImplThread();
 
     for (size_t i = 0; i < layer->children().size(); ++i)
         animateScrollbarsRecursive(layer->children()[i], time);
 }
 
 }  // namespace cc