Improve omnibox accessibility on Windows.

chrome/browser/ui/views/omnibox/omnibox_view_win.h

Index: chrome/browser/ui/views/omnibox/omnibox_view_win.h
===================================================================
--- chrome/browser/ui/views/omnibox/omnibox_view_win.h	(revision 107903)
+++ chrome/browser/ui/views/omnibox/omnibox_view_win.h	(working copy)
@@ -28,9 +28,11 @@
 class AutocompleteEditModel;
 class AutocompletePopupView;
 class LocationBarView;
+class OmniboxViewWrapper;
 class TabContents;
 
 namespace views {
+class NativeViewHost;
 class View;
 }
 
@@ -117,7 +119,7 @@
   virtual bool IsSelectAll() OVERRIDE;
   virtual bool DeleteAtEndPressed() OVERRIDE;
   virtual void GetSelectionBounds(string16::size_type* start,
-                                  string16::size_type* end) OVERRIDE;
+                                  string16::size_type* end) const OVERRIDE;
   virtual void SelectAll(bool reversed) OVERRIDE;
   virtual void RevertAll() OVERRIDE;
 
@@ -148,9 +150,6 @@
 
   int GetPopupMaxYCoordinate();
 
-  // Exposes custom IAccessible implementation to the overall MSAA hierarchy.
-  IAccessible* GetIAccessible();
-
   void SetDropHighlightPosition(int position);
   int drop_highlight_position() const { return drop_highlight_position_; }
 
@@ -283,7 +282,7 @@
   void OnContextMenu(HWND window, const CPoint& point);
   void OnCopy();
   void OnCut();
-  LRESULT OnGetObject(UINT uMsg, WPARAM wparam, LPARAM lparam);
+  LRESULT OnGetObject(UINT message, WPARAM wparam, LPARAM lparam);
   LRESULT OnImeComposition(UINT message, WPARAM wparam, LPARAM lparam);
   LRESULT OnImeNotify(UINT message, WPARAM wparam, LPARAM lparam);
   void OnKeyDown(TCHAR key, UINT repeat_count, UINT flags);
@@ -550,6 +549,9 @@
   // Instance of accessibility information and handling.
   mutable base::win::ScopedComPtr<IAccessible> autocomplete_accessibility_;
 
+  // The native view host.
+  views::NativeViewHost* native_view_host_;
+
   DISALLOW_COPY_AND_ASSIGN(OmniboxViewWin);
 };