Integrate the new input method API for Views into Chromium.

views/widget/widget.h

Index: views/widget/widget.h
diff --git a/views/widget/widget.h b/views/widget/widget.h
index f4e32f7552e4e527748a784385772d5a264c82da..f7439bc788316ec15617130142dff39ca5d73cff 100644
--- a/views/widget/widget.h
+++ b/views/widget/widget.h
@@ -33,6 +33,7 @@ using ui::ThemeProvider;
 namespace views {
 
 class DefaultThemeProvider;
+class InputMethod;
 class NativeWidget;
 class RootView;
 class TooltipManager;
@@ -224,6 +225,10 @@ class Widget : public internal::NativeWidgetDelegate,
   // TODO(beng): remove virtual.
   virtual FocusManager* GetFocusManager();
 
+  // Returns the InputMethod for this widget.
+  // Note that all widgets in a widget hierarchy share the same input method.
+  InputMethod* GetInputMethod();
+
   // Returns true if the native view |native_view| is contained in the
   // views::View hierarchy rooted at this widget.
   // TODO(beng): const.