Add a new "Configure" mechanism to CLD browser-side data interfaces.

chrome/browser/component_updater/cld_component_installer.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_COMPONENT_UPDATER_CLD_COMPONENT_INSTALLER_H_
 #define CHROME_BROWSER_COMPONENT_UPDATER_CLD_COMPONENT_INSTALLER_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 42 matching lines @@
   virtual std::string GetName() const OVERRIDE;
 
   static base::FilePath GetInstalledPath(const base::FilePath& base);
 
   // Sets the path to the CLD data file. Called internally once a valid CLD
   // data file has been observed. The implementation of this method is
   // responsible for configuring the CLD data source.
   // This method is threadsafe.
   static void SetLatestCldDataFile(const base::FilePath& path);
 
+  // Allows testing code to detect the file path that was ultimately set in
+  // SetLatestCldDataFile.
+  static base::FilePath GetLatestCldDataFile_ForTest();
+
   DISALLOW_COPY_AND_ASSIGN(CldComponentInstallerTraits);
 };
 
 // Call once during startup to make the component update service aware of
 // the CLD component.
 void RegisterCldComponent(ComponentUpdateService* cus);
 
 }  // namespace component_updater
 
 #endif  // CHROME_BROWSER_COMPONENT_UPDATER_CLD_COMPONENT_INSTALLER_H_