OOPIF: Clear old focused frame when focus moves to a cross-process frame.

third_party/WebKit/public/web/WebLocalFrame.h

 // Copyright 2014 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 WebLocalFrame_h
 #define WebLocalFrame_h
 
 #include "WebFrame.h"
 #include "WebFrameLoadType.h"
 
@@ skipping 131 matching lines @@
     virtual void setIsolatedWorldHumanReadableName(int worldID, const WebString&) = 0;
 
 
     // Selection --------------------------------------------------------------
 
     // Moves the selection extent point. This function does not allow the
     // selection to collapse. If the new extent is set to the same position as
     // the current base, this function will do nothing.
     virtual void moveRangeSelectionExtent(const WebPoint&) = 0;
 
+    // Focus ------------------------------------------------------------------
+
+    // Called when this frame loses focus to a frame in another process.
+    virtual void clearFocus() = 0;
+
     // Content Settings -------------------------------------------------------
 
     virtual void setContentSettingsClient(WebContentSettingsClient*) = 0;
 
     // App banner -------------------------------------------------------------
 
     // Request to show an application install banner for the given |platforms|.
     // The implementation can request the embedder to cancel the call by setting
     // |cancel| to true.
     virtual void willShowInstallBannerPrompt(int requestId, const WebVector<WebString>& platforms, WebAppBannerPromptReply*) = 0;
@@ skipping 13 matching lines @@
     // Returns the effective sandbox flags which are inherited from their parent frame.
     virtual WebSandboxFlags effectiveSandboxFlags() const = 0;
 
 protected:
     explicit WebLocalFrame(WebTreeScopeType scope) : WebFrame(scope) { }
 };
 
 } // namespace blink
 
 #endif // WebLocalFrame_h