Mark layers that can use LCD text based on layer transform and opacity.

cc/content_layer.h

 // Copyright 2010 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_CONTENT_LAYER_H_
 #define CC_CONTENT_LAYER_H_
 
 #include "base/basictypes.h"
 #include "cc/cc_export.h"
 #include "cc/layer_painter.h"
@@ skipping 35 matching lines @@
     virtual void setContentsOpaque(bool) OVERRIDE;
 
 protected:
     explicit ContentLayer(ContentLayerClient*);
     virtual ~ContentLayer();
 
 private:
     virtual LayerUpdater* updater() const OVERRIDE;
     virtual void createUpdaterIfNeeded() OVERRIDE;
 
+    void syncCanUseLCDText();
+    // Called when LCD text setting is about to potentially change.
+    // If this function returns true, the setting is allowed to change.
+    // If it returns false, the setting is not changed.
+    bool canUseLCDTextWillChange() const;
+    void canUseLCDTextDidChange();
+
     ContentLayerClient* m_client;
     scoped_refptr<LayerUpdater> m_updater;
+
+    bool m_canUseLCDText;

[enne (OOO), 2012/12/12 17:56:52]

You need to initialize this in the constructor.

[alokp, 2012/12/12 19:03:04]

Done.

+    int m_lcdTextChangeCount;
+    static const int kLCDTextMaxChangeCount;
 };
 
 }
 #endif  // CC_CONTENT_LAYER_H_