[reland] Browser Side Text Input State Tracking for OOPIF (Aura Only)

content/browser/frame_host/interstitial_page_impl.h

Index: content/browser/frame_host/interstitial_page_impl.h
diff --git a/content/browser/frame_host/interstitial_page_impl.h b/content/browser/frame_host/interstitial_page_impl.h
index cbefe14f18f9ffea664961b18b5290930f7a9532..3edeef63171f5d5ef7c5e9e020d5d415d71675bb 100644
--- a/content/browser/frame_host/interstitial_page_impl.h
+++ b/content/browser/frame_host/interstitial_page_impl.h
@@ -30,6 +30,7 @@ class NavigationEntry;
 class NavigationControllerImpl;
 class RenderViewHostImpl;
 class RenderWidgetHostView;
+class TextInputManager;
 class WebContentsView;
 
 enum ResourceRequestAction {
@@ -157,6 +158,7 @@ class CONTENT_EXPORT InterstitialPageImpl
   bool PreHandleKeyboardEvent(const NativeWebKeyboardEvent& event,
                               bool* is_keyboard_shortcut) override;
   void HandleKeyboardEvent(const NativeWebKeyboardEvent& event) override;
+  TextInputManager* GetTextInputManager() override;
 
   bool enabled() const { return enabled_; }
   WebContents* web_contents() const;
@@ -296,6 +298,8 @@ class CONTENT_EXPORT InterstitialPageImpl
 
   scoped_refptr<SessionStorageNamespace> session_storage_namespace_;
 
+  std::unique_ptr<TextInputManager> text_input_manager_;
+
   base::WeakPtrFactory<InterstitialPageImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(InterstitialPageImpl);