Browser Side Text Input State Tracking for OOPIF.

content/browser/frame_host/render_widget_host_view_guest.h

Index: content/browser/frame_host/render_widget_host_view_guest.h
diff --git a/content/browser/frame_host/render_widget_host_view_guest.h b/content/browser/frame_host/render_widget_host_view_guest.h
index a780224ee73d4527ac37b9e977d1b3b964dd281c..ac2216377c9f890b6edaedfae9c48f6a19fdf4ba 100644
--- a/content/browser/frame_host/render_widget_host_view_guest.h
+++ b/content/browser/frame_host/render_widget_host_view_guest.h
@@ -24,8 +24,6 @@
 #include "ui/gfx/geometry/vector2d_f.h"
 #include "ui/gfx/native_widget_types.h"
 
-struct ViewHostMsg_TextInputState_Params;
-
 namespace content {
 class BrowserPluginGuest;
 class RenderWidgetHost;
@@ -78,8 +76,6 @@ class CONTENT_EXPORT RenderWidgetHostViewGuest
   void InitAsFullscreen(RenderWidgetHostView* reference_host_view) override;
   void UpdateCursor(const WebCursor& cursor) override;
   void SetIsLoading(bool is_loading) override;
-  void TextInputStateChanged(
-      const ViewHostMsg_TextInputState_Params& params) override;
   void ImeCancelComposition() override;
 #if defined(OS_MACOSX) || defined(USE_AURA)
   void ImeCompositionRangeChanged(