Move rest of param validation in browsing_data_api.cc to ::RunAsync.

chrome/browser/extensions/api/browsing_data/browsing_data_api.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.
 
 // Defines the Chrome Extensions BrowsingData API functions, which entail
 // clearing browsing data, and clearing the browser's cache (which, let's be
 // honest, are the same thing), as specified in the extension API JSON.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_API_BROWSING_DATA_BROWSING_DATA_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_BROWSING_DATA_BROWSING_DATA_API_H_
@@ skipping 92 matching lines @@
   // Returns whether or not removal mask retrieval was successful.
   // |removal_mask| is populated with the result, if successful.
   virtual bool GetRemovalMask(int* removal_mask) = 0;
 
  private:
   // Updates the removal bitmask according to whether removing plugin data is
   // supported or not.
   void CheckRemovingPluginDataSupported(
       scoped_refptr<PluginPrefs> plugin_prefs);
 
-  // Parse the developer-provided |origin_types| object into an origin_type_mask
+  // Parse the developer-provided |origin_types| object into |origin_type_mask|
   // that can be used with the BrowsingDataRemover.
-  int ParseOriginTypeMask(const base::DictionaryValue& options);
+  // Returns true if parsing was successful.
+  bool ParseOriginTypeMask(const base::DictionaryValue& options,
+                           int* origin_type_mask);
 
   // Called when we're ready to start removing data.
   void StartRemoving();
 
   base::Time remove_since_;
   int removal_mask_;
   int origin_type_mask_;
   ScopedObserver<BrowsingDataRemover, BrowsingDataRemover::Observer> observer_;
 };
 
@@ skipping 175 matching lines @@
                              BROWSINGDATA_REMOVEWEBSQL)
 
  protected:
   ~BrowsingDataRemoveWebSQLFunction() override {}
 
   // BrowsingDataRemoverFunction:
   bool GetRemovalMask(int* removal_mask) override;
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_BROWSING_DATA_BROWSING_DATA_API_H_