Redesigns the text input focus handling.

ui/views/controls/webview/webview.h

Index: ui/views/controls/webview/webview.h
diff --git a/ui/views/controls/webview/webview.h b/ui/views/controls/webview/webview.h
index df0c61ce518c427b692e940d2035fcd667ff45f9..0bb0c68699f70c97bf7b9be6f02315b3594bd7bd 100644
--- a/ui/views/controls/webview/webview.h
+++ b/ui/views/controls/webview/webview.h
@@ -94,6 +94,7 @@ class WEBVIEW_EXPORT WebView : public View,
 
   // Overridden from View:
   virtual const char* GetClassName() const OVERRIDE;
+  virtual ui::TextInputClient* GetTextInputClient() OVERRIDE;
 
  protected:
   // Overridden from View:
@@ -114,6 +115,8 @@ class WEBVIEW_EXPORT WebView : public View,
   virtual bool EmbedsFullscreenWidget() const OVERRIDE;
 
   // Overridden from content::WebContentsObserver:
+  virtual void RenderViewDeleted(
+      content::RenderViewHost* render_view_host) OVERRIDE;
   virtual void RenderViewHostChanged(
       content::RenderViewHost* old_host,
       content::RenderViewHost* new_host) OVERRIDE;
@@ -129,6 +132,7 @@ class WEBVIEW_EXPORT WebView : public View,
   void AttachWebContents();
   void DetachWebContents();
   void ReattachForFullscreenChange(bool enter_fullscreen);
+  void NotifyMaybeTextInputClientChanged();
 
   // Create a regular or test web contents (based on whether we're running
   // in a unit test or not).