Add WebContentObserver::OnWebContentsLostFocus()

content/browser/renderer_host/render_widget_host_delegate.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_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_DELEGATE_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_DELEGATE_H_
 
 #include <stdint.h>
 
 #include <vector>
@@ skipping 42 matching lines @@
  public:
   // The RenderWidgetHost has just been created.
   virtual void RenderWidgetCreated(RenderWidgetHostImpl* render_widget_host) {}
 
   // The RenderWidgetHost is going to be deleted.
   virtual void RenderWidgetDeleted(RenderWidgetHostImpl* render_widget_host) {}
 
   // The RenderWidgetHost got the focus.
   virtual void RenderWidgetGotFocus(RenderWidgetHostImpl* render_widget_host) {}
 
+  // The RenderWidgetHost lost the focus.
+  virtual void RenderWidgetLostFocus(
+      RenderWidgetHostImpl* render_widget_host) {}
+
   // The RenderWidget was resized.
   virtual void RenderWidgetWasResized(RenderWidgetHostImpl* render_widget_host,
                                       bool width_changed) {}
 
   // The contents auto-resized and the container should match it.
   virtual void ResizeDueToAutoResize(RenderWidgetHostImpl* render_widget_host,
                                      const gfx::Size& new_size) {}
 
   // The screen info has changed.
   virtual void ScreenInfoChanged() {}
@@ skipping 179 matching lines @@
   // Notifies that a CompositorFrame was received from the renderer.
   virtual void DidReceiveCompositorFrame() {}
 
  protected:
   virtual ~RenderWidgetHostDelegate() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_DELEGATE_H_