Make sure that a given app/extension requests only its own resources.

chrome/browser/extensions/api/serial/serial_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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_API_SERIAL_SERIAL_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_SERIAL_SERIAL_API_H_
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
@@ skipping 12 matching lines @@
 class SerialAsyncApiFunction : public AsyncApiFunction {
  public:
   SerialAsyncApiFunction();
 
  protected:
   virtual ~SerialAsyncApiFunction();
 
   // AsyncApiFunction:
   virtual bool PrePrepare() OVERRIDE;
 
+  SerialConnection* GetSerialConnection(int api_resource_id);
+  void RemoveSerialConnection(int api_resource_id);
+
   ApiResourceManager<SerialConnection>* manager_;
 };
 
 class SerialGetPortsFunction : public SerialAsyncApiFunction {
  public:
   DECLARE_EXTENSION_FUNCTION_NAME("serial.getPorts")
 
   SerialGetPortsFunction();
 
  protected:
@@ skipping 17 matching lines @@
   // AsyncApiFunction:
   virtual bool Prepare() OVERRIDE;
   virtual void AsyncWorkStart() OVERRIDE;
   virtual void Work() OVERRIDE;
   virtual bool Respond() OVERRIDE;
 
   // Overrideable for testing.
   virtual SerialConnection* CreateSerialConnection(
       const std::string& port,
       int bitrate,
+      const std::string& owner_extension_id,
       ApiResourceEventNotifier* event_notifier);
   virtual bool DoesPortExist(const std::string& port);
 
  private:
   scoped_ptr<api::serial::Open::Params> params_;
   int src_id_;
   int bitrate_;
 
   // SerialConnection will take ownership.
   ApiResourceEventNotifier* event_notifier_;
@@ skipping 106 matching lines @@
   virtual void Work() OVERRIDE;
   virtual bool Respond() OVERRIDE;
 
  private:
   scoped_ptr<api::serial::SetControlSignals::Params> params_;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_SERIAL_SERIAL_API_H_