Replace ViewHostMsg_TextInputState_Params with content::TextInputState.

content/browser/renderer_host/render_widget_host_view_aura.h

Index: content/browser/renderer_host/render_widget_host_view_aura.h
diff --git a/content/browser/renderer_host/render_widget_host_view_aura.h b/content/browser/renderer_host/render_widget_host_view_aura.h
index a788611dfcec38aab76abebe44b029d91096f601..cb330b8964dfe6b18165f85335fc69dbe8c45cb1 100644
--- a/content/browser/renderer_host/render_widget_host_view_aura.h
+++ b/content/browser/renderer_host/render_widget_host_view_aura.h
@@ -44,8 +44,6 @@
 #include "ui/gfx/geometry/rect.h"
 #include "ui/wm/public/activation_delegate.h"
 
-struct ViewHostMsg_TextInputState_Params;
-
 namespace aura {
 namespace client {
 class ScopedTooltipDisabler;
@@ -87,6 +85,7 @@ class RenderViewHostDelegateView;
 class RenderWidgetHostImpl;
 class RenderWidgetHostView;
 class TouchSelectionControllerClientAura;
+struct TextInputState;
 
 // RenderWidgetHostView class hierarchy described in render_widget_host_view.h.
 class CONTENT_EXPORT RenderWidgetHostViewAura
@@ -136,8 +135,7 @@ class CONTENT_EXPORT RenderWidgetHostViewAura
   void Focus() override;
   void UpdateCursor(const WebCursor& cursor) override;
   void SetIsLoading(bool is_loading) override;
-  void TextInputStateChanged(
-      const ViewHostMsg_TextInputState_Params& params) override;
+  void TextInputStateChanged(const TextInputState& params) override;
   void ImeCancelComposition() override;
   void ImeCompositionRangeChanged(
       const gfx::Range& range,