cc: switch to new WebLayerTreeViewClient API for requesting font atlas

cc/heads_up_display_layer.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/heads_up_display_layer.h"
 
 #include "base/debug/trace_event.h"
 #include "cc/heads_up_display_layer_impl.h"
 #include "cc/layer_tree_host.h"
 
 namespace cc {
 
 scoped_refptr<HeadsUpDisplayLayer> HeadsUpDisplayLayer::create()
 {
     return make_scoped_refptr(new HeadsUpDisplayLayer());
 }
 
 HeadsUpDisplayLayer::HeadsUpDisplayLayer()
     : Layer()
     , m_showFPSCounter(false)
+    , m_hasFontAtlas(false)
 {
     setBounds(gfx::Size(256, 128));
 }
 
 HeadsUpDisplayLayer::~HeadsUpDisplayLayer()
 {
 }
 
 void HeadsUpDisplayLayer::update(ResourceUpdateQueue&, const OcclusionTracker*, RenderingStats&)
 {
@@ skipping 19 matching lines @@
 
 bool HeadsUpDisplayLayer::drawsContent() const
 {
     return true;
 }
 
 void HeadsUpDisplayLayer::setFontAtlas(scoped_ptr<FontAtlas> fontAtlas)
 {
     m_fontAtlas = fontAtlas.Pass();
     setNeedsCommit();
+    m_hasFontAtlas = true;
 }
 
 void HeadsUpDisplayLayer::setShowFPSCounter(bool show)
 {
     m_showFPSCounter = show;
     setNeedsCommit();
 }
 
 scoped_ptr<LayerImpl> HeadsUpDisplayLayer::createLayerImpl()
 {
     return HeadsUpDisplayLayerImpl::create(m_layerId).PassAs<LayerImpl>();
 }
 
 void HeadsUpDisplayLayer::pushPropertiesTo(LayerImpl* layerImpl)
 {
     Layer::pushPropertiesTo(layerImpl);
 
     HeadsUpDisplayLayerImpl* hudLayerImpl = static_cast<HeadsUpDisplayLayerImpl*>(layerImpl);
     hudLayerImpl->setShowFPSCounter(m_showFPSCounter);
 
     if (m_fontAtlas.get())
         hudLayerImpl->setFontAtlas(m_fontAtlas.Pass());
 }
 
 }  // namespace cc