Pull AsyncApiFunction out of src/chrome

chrome/browser/extensions/api/usb/usb_api.cc

 // 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.
 
 #include "chrome/browser/extensions/api/usb/usb_api.h"
 
 #include <string>
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 378 matching lines @@
 namespace extensions {
 
 UsbAsyncApiFunction::UsbAsyncApiFunction()
     : manager_(NULL) {
 }
 
 UsbAsyncApiFunction::~UsbAsyncApiFunction() {
 }
 
 bool UsbAsyncApiFunction::PrePrepare() {
-  manager_ = ApiResourceManager<UsbDeviceResource>::Get(GetProfile());
+  manager_ = ApiResourceManager<UsbDeviceResource>::Get(context());
   set_work_thread_id(BrowserThread::FILE);
   return manager_ != NULL;
 }
 
 bool UsbAsyncApiFunction::Respond() {
   return error_.empty();
 }
 
 scoped_refptr<UsbDevice>
 UsbAsyncApiFunction::GetDeviceOrOrCompleteWithError(
@@ skipping 761 matching lines @@
     SetResult(new base::FundamentalValue(false));
     CompleteWithError(kErrorResetDevice);
     return;
   }
 
   SetResult(new base::FundamentalValue(true));
   AsyncWorkCompleted();
 }
 
 }  // namespace extensions