content::ResourceType clean up

chrome/browser/search/iframe_source_unittest.cc

 // Copyright 2013 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/search/iframe_source.h"
 
 #include <memory>
 
 #include "base/bind.h"
 #include "base/memory/ref_counted_memory.h"
 #include "base/message_loop/message_loop.h"
 #include "chrome/browser/search/instant_io_context.h"
 #include "chrome/grit/browser_resources.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/resource_request_info.h"
 #include "content/public/test/mock_resource_context.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "ipc/ipc_message.h"
 #include "net/base/request_priority.h"
 #include "net/url_request/url_request.h"
 #include "net/url_request/url_request_context.h"
 #include "net/url_request/url_request_test_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "url/gurl.h"
 
-using content::ResourceType;
-
 const int kNonInstantRendererPID = 0;
 const char kNonInstantOrigin[] = "http://evil";
 const int kInstantRendererPID = 1;
 const char kInstantOrigin[] = "chrome-search://instant";
 const int kInvalidRendererPID = 42;
 
 class TestIframeSource : public IframeSource {
  public:
   using IframeSource::GetMimeType;
   using IframeSource::ShouldServiceRequest;
@@ skipping 151 matching lines @@
   source()->set_origin(kInstantOrigin);
   SendJSWithOrigin(IDR_MOST_VISITED_TITLE_JS);
   EXPECT_FALSE(response_string().empty());
   source()->set_origin(kNonInstantOrigin);
   SendJSWithOrigin(IDR_MOST_VISITED_TITLE_JS);
   EXPECT_FALSE(response_string().empty());
   source()->set_origin(std::string());
   SendJSWithOrigin(IDR_MOST_VISITED_TITLE_JS);
   EXPECT_TRUE(response_string().empty());
 }