Add more generic filters to the chrome.usb.getDevices API.

extensions/browser/api/usb/usb_api.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 EXTENSIONS_BROWSER_API_USB_USB_API_H_
 #define EXTENSIONS_BROWSER_API_USB_USB_API_H_
 
 #include <string>
 #include <vector>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "components/usb_service/usb_device.h"
+#include "components/usb_service/usb_device_filter.h"
 #include "components/usb_service/usb_device_handle.h"
 #include "extensions/browser/api/api_resource_manager.h"
 #include "extensions/browser/api/async_api_function.h"
 #include "extensions/common/api/usb.h"
 #include "net/base/io_buffer.h"
 
 namespace extensions {
 
 class UsbDeviceResource;
 
 class UsbAsyncApiFunction : public AsyncApiFunction {
  public:
   UsbAsyncApiFunction();
 
  protected:
   virtual ~UsbAsyncApiFunction();
 
   virtual bool PrePrepare() OVERRIDE;
   virtual bool Respond() OVERRIDE;
 
-  scoped_refptr<usb_service::UsbDevice> GetDeviceOrOrCompleteWithError(
+  static void CreateDeviceFilter(
+      const extensions::core_api::usb::DeviceFilter& input,
+      usb_service::UsbDeviceFilter* output);
+
+  bool HasDevicePermission(scoped_refptr<usb_service::UsbDevice> device);
+
+  scoped_refptr<usb_service::UsbDevice> GetDeviceOrCompleteWithError(
       const extensions::core_api::usb::Device& input_device);
 
   scoped_refptr<usb_service::UsbDeviceHandle>
       GetDeviceHandleOrCompleteWithError(
           const extensions::core_api::usb::ConnectionHandle&
               input_device_handle);
 
   void RemoveUsbDeviceResource(int api_resource_id);
 
   void CompleteWithError(const std::string& error);
@@ skipping 263 matching lines @@
 
   virtual bool Prepare() OVERRIDE;
   virtual void AsyncWorkStart() OVERRIDE;
 
  private:
   scoped_ptr<extensions::core_api::usb::ResetDevice::Params> parameters_;
 };
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_USB_USB_API_H_