Expose whether a frame is focused to the browser process

content/public/browser/render_widget_host.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_PUBLIC_BROWSER_RENDER_WIDGET_HOST_H_
 #define CONTENT_PUBLIC_BROWSER_RENDER_WIDGET_HOST_H_
 
 #include "base/callback.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/native_web_keyboard_event.h"
@@ skipping 139 matching lines @@
   // Once we cancel updating the text direction, we have to ignore all
   // succeeding UpdateTextDirection() requests until calling
   // NotifyTextDirection(). (We may receive keydown events even after we
   // canceled updating the text direction because of auto-repeat.)
   // Note: we cannot undo this change for compatibility with Firefox and IE.
   virtual void UpdateTextDirection(blink::WebTextDirection direction) = 0;
   virtual void NotifyTextDirection() = 0;
 
   virtual void Focus() = 0;
   virtual void Blur() = 0;
+  virtual bool IsFocused() const = 0;

[mlamouri (slow - plz ping), 2015/01/21 17:29:36]

If preferred, I could expose that to RenderWidgetHostImpl instead.

 
   // Sets whether the renderer should show controls in an active state.  On all
   // platforms except mac, that's the same as focused. On mac, the frontmost
   // window will show active controls even if the focus is not in the web
   // contents, but e.g. in the omnibox.
   virtual void SetActive(bool active) = 0;
 
   // Copies the given subset of the backing store, and passes the result as a
   // bitmap to a callback.
   //
@@ skipping 88 matching lines @@
   // within content/.  This method is necessary because
   // RenderWidgetHost is the root of a diamond inheritance pattern, so
   // subclasses inherit it virtually, which removes our ability to
   // static_cast to the subclass.
   virtual RenderWidgetHostImpl* AsRenderWidgetHostImpl() = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_RENDER_WIDGET_HOST_H_