Revert 236048 "Rename RootWindowHost* to WindowTreeHost*"

trunk/src/content/shell/browser/shell_aura.cc

Index: trunk/src/content/shell/browser/shell_aura.cc
===================================================================
--- trunk/src/content/shell/browser/shell_aura.cc	(revision 236091)
+++ trunk/src/content/shell/browser/shell_aura.cc	(working copy)
@@ -101,7 +101,7 @@
   virtual bool DispatchKeyEventPostIME(
       const base::NativeEvent& event) OVERRIDE {
     ui::TranslatedKeyEvent aura_event(event, false /* is_char */);
-    return root_->AsWindowTreeHostDelegate()->OnHostKeyEvent(
+    return root_->AsRootWindowHostDelegate()->OnHostKeyEvent(
         &aura_event);
   }
 
@@ -110,7 +110,7 @@
                                                  int flags) OVERRIDE {
     ui::TranslatedKeyEvent aura_event(type == ui::ET_KEY_PRESSED, key_code,
                                       flags);
-    return root_->AsWindowTreeHostDelegate()->OnHostKeyEvent(
+    return root_->AsRootWindowHostDelegate()->OnHostKeyEvent(
         &aura_event);
   }