Route selection bounds updates through WebLayerTreeView

public/web/WebRuntimeFeatures.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 28 matching lines @@
 // Stable features are enabled by default.
 class WebRuntimeFeatures {
 public:
     BLINK_EXPORT static void enableExperimentalFeatures(bool);
     BLINK_EXPORT static void enableTestOnlyFeatures(bool);
 
     BLINK_EXPORT static void enableApplicationCache(bool);
 
     BLINK_EXPORT static void enableDatabase(bool);
 
+    BLINK_EXPORT static void enableCompositedSelectionUpdates(bool);

[jdduke (slow), 2014/09/19 15:09:22]

Could we also add a |isCompositedSelectionUpdatesEnabled()| counterpart? Turns
out that will be useful downstream (see latest comments on
https://codereview.chromium.org/359033002/).

[jdduke (slow), 2014/09/19 15:14:01]

|areCompositedSelectionUpdatesEnabled()|? 

Or should the wording should be more like

|enableCompositedSelectionBounds()|
|areCompositedSelectionBoundsEnabled()|?

[trchen, 2014/09/19 21:08:42]

Acknowledged.
I think we should change it to singular form. It is not too late to do it yet.

+
     BLINK_EXPORT static void enableDisplayList2dCanvas(bool);
 
     BLINK_EXPORT static void enableEncryptedMedia(bool);
     BLINK_EXPORT static bool isEncryptedMediaEnabled();
 
     BLINK_EXPORT static void enablePrefixedEncryptedMedia(bool);
     BLINK_EXPORT static bool isPrefixedEncryptedMediaEnabled();
 
     BLINK_EXPORT static void enableBleedingEdgeFastPaths(bool);
 
@@ skipping 69 matching lines @@
 
     BLINK_EXPORT static void enableLaxMixedContentChecking(bool);
 
 private:
     WebRuntimeFeatures();
 };
 
 } // namespace blink
 
 #endif