Fixes for two different HUD issues related to win32k lockdown

cc/trees/layer_tree_host_client.h

 // 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.
 
 #ifndef CC_TREES_LAYER_TREE_HOST_CLIENT_H_
 #define CC_TREES_LAYER_TREE_HOST_CLIENT_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/time/time.h"
 
+class SkTypeface;
+
 namespace gfx {
 class Vector2d;
 class Vector2dF;
 }
 
 namespace cc {
 class ContextProvider;
 class InputHandlerClient;
 class OutputSurface;
 struct BeginFrameArgs;
@@ skipping 33 matching lines @@
   // TODO(simonhong): Makes this to pure virtual function when client
   // implementation is ready.
   virtual void SendBeginFramesToChildren(const BeginFrameArgs& args) {}
 
   // Requests that the client insert a rate limiting token in the shared main
   // thread context's command stream that will block if the context gets too far
   // ahead of the compositor's command stream. Only needed if the tree contains
   // a TextureLayer that calls SetRateLimitContext(true).
   virtual void RateLimitSharedMainThreadContext() {}
 
+  virtual SkTypeface* GetHudTypeface() = 0;

[enne (OOO), 2015/02/05 01:30:28]

This is here (vs LayerTreeSettings) so that the font can be initialized lazily
for non-Windows platforms?

[scottmg, 2015/02/05 03:28:32]

LayerTreeSettings seems fine if that's OK w/ you. I almost put it there but it
seemed like ... just bools and numbers so wasn't sure. Much less plumbing to
have it there. :)

[enne (OOO), 2015/02/05 17:54:44]

Or, said differently, if lazy initialization isn't a goal, I'd prefer it to be a
LayerTreeSetting or even just a setter on LayerTreeHost that got called
unconditionally.

If it is a goal, I can't really think of a better place to put a function like
that, so this is probably ok.

+
  protected:
   virtual ~LayerTreeHostClient() {}
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_HOST_CLIENT_H_