Support getting and deleting token for Instance ID.

chrome/browser/extensions/api/instance_id/instance_id_api.h

 // Copyright 2015 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_API_INSTANCE_ID_INSTANCE_ID_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_INSTANCE_ID_INSTANCE_ID_API_H_
 
 #include "base/macros.h"
 #include "components/gcm_driver/instance_id/instance_id.h"
 #include "extensions/browser/extension_function.h"
@@ skipping 74 matching lines @@
 
  private:
   void GetTokenCompleted(const std::string& token,
                          instance_id::InstanceID::Result result);
 
   DISALLOW_COPY_AND_ASSIGN(InstanceIDGetTokenFunction);
 };
 
 class InstanceIDDeleteTokenFunction : public InstanceIDApiFunction {
  public:
-  DECLARE_EXTENSION_FUNCTION("instanceID.DeleteToken", INSTANCEID_DELETETOKEN);
+  DECLARE_EXTENSION_FUNCTION("instanceID.deleteToken", INSTANCEID_DELETETOKEN);
 
   InstanceIDDeleteTokenFunction();
 
  protected:
   ~InstanceIDDeleteTokenFunction() override;
 
   // InstanceIDApiFunction:
   ResponseAction DoWork() override;
 
  private:
@@ skipping 17 matching lines @@
 
  private:
   void DeleteIDCompleted(instance_id::InstanceID::Result result);
 
   DISALLOW_COPY_AND_ASSIGN(InstanceIDDeleteIDFunction);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_INSTANCE_ID_INSTANCE_ID_API_H_