Show extension uninstall dialog in browser window.

chrome/browser/extensions/chrome_extension_function_details.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 CHROME_BROWSER_EXTENSIONS_CHROME_EXTENSION_FUNCTION_DETAILS_H_
 #define CHROME_BROWSER_EXTENSIONS_CHROME_EXTENSION_FUNCTION_DETAILS_H_
 
 #include "base/macros.h"
+#include "ui/gfx/native_widget_types.h"
 
 class Browser;
 class Profile;
 class UIThreadExtensionFunction;
 
 namespace content {
 class WebContents;
 }
 
 namespace extensions {
@@ skipping 31 matching lines @@
   // TODO(stevenjb): Replace this with GetExtensionWindowController().
   Browser* GetCurrentBrowser() const;
 
   // Same as above but uses WindowControllerList instead of BrowserList.
   extensions::WindowController* GetExtensionWindowController() const;
 
   // Gets the "current" web contents if any. If there is no associated web
   // contents then defaults to the foremost one.
   content::WebContents* GetAssociatedWebContents();
 
+  // Gets the web contents where the function is originated. This will return
+  // the sender's web contents if it's not from a background page. Otherwise
+  // this method will try to find the web contents from source_tab_id if it's
+  // not TabStripModel::kNoTab, or find the app's web contents by the extension
+  // id. If the web contents still can't be found, NULL will be returned.
+  content::WebContents* GetOriginWebContents();

[not at google - send to devlin, 2015/07/10 22:52:48]

I like it.

+
+  // Find a UI surface to display any UI (like a permission prompt) for the
+  // extension calling this function. If the origin's window can't be found,
+  // the browser's window will be returned.
+  gfx::NativeWindow GetNativeWindowForUI();
+
   // Returns a pointer to the associated UIThreadExtensionFunction
   UIThreadExtensionFunction* function() { return function_; }
   const UIThreadExtensionFunction* function() const { return function_; }
 
  private:
   // The function for which these details have been created. Must outlive the
   // ChromeExtensionFunctionDetails instance.
   UIThreadExtensionFunction* function_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeExtensionFunctionDetails);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_CHROME_EXTENSION_FUNCTION_DETAILS_H_