Implement Input Method related WebPlugin interface for browser plugin

content/browser/renderer_host/render_widget_host_impl.h

Index: content/browser/renderer_host/render_widget_host_impl.h
diff --git a/content/browser/renderer_host/render_widget_host_impl.h b/content/browser/renderer_host/render_widget_host_impl.h
index d1231cac59e114d85b14c29a2dba13ae080f5293..99c13a971dd02cf419e0c4521cefb4693d426787 100644
--- a/content/browser/renderer_host/render_widget_host_impl.h
+++ b/content/browser/renderer_host/render_widget_host_impl.h
@@ -547,6 +547,17 @@ class CONTENT_EXPORT RenderWidgetHostImpl : virtual public RenderWidgetHost,
   // Don't check whether we expected a resize ack during layout tests.
   static void DisableResizeAckCheckForTesting();
 
+  // Public interface for changing TextInputType etc. at once.
+  void ChangeTextInputType(ui::TextInputType type,
+                           ui::TextInputMode input_mode,
+                           bool can_compose_inline);
+  void CancelImeComposition();
+#if defined(OS_MACOSX) || defined(OS_WIN) || defined(USE_AURA)
+  void ChangeImeCompositionRange(
+      const gfx::Range& range,
+      const std::vector<gfx::Rect>& character_bounds);
+#endif
+
  protected:
   virtual RenderWidgetHostImpl* AsRenderWidgetHostImpl() OVERRIDE;