Switch content tests to use BrowserThreadImpl directly.

content/browser/renderer_host/resource_queue_unittest.cc

Index: content/browser/renderer_host/resource_queue_unittest.cc
diff --git a/content/browser/renderer_host/resource_queue_unittest.cc b/content/browser/renderer_host/resource_queue_unittest.cc
index cc48914f443ce9b2cdd17ec96cbe1628dbbddec0..6a6e36f60c7cd4fec0657486cfb0778d50350cea 100644
--- a/content/browser/renderer_host/resource_queue_unittest.cc
+++ b/content/browser/renderer_host/resource_queue_unittest.cc
@@ -4,16 +4,17 @@
 
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
+#include "content/browser/browser_thread_impl.h"
 #include "content/browser/mock_resource_context.h"
 #include "content/browser/renderer_host/dummy_resource_handler.h"
 #include "content/browser/renderer_host/global_request_id.h"
 #include "content/browser/renderer_host/resource_dispatcher_host_request_info.h"
 #include "content/browser/renderer_host/resource_queue.h"
-#include "content/test/test_browser_thread.h"
 #include "googleurl/src/gurl.h"
 #include "net/url_request/url_request.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+using content::BrowserThreadImpl;
 using content::DummyResourceHandler;
 
 namespace {
@@ -123,8 +124,8 @@ class ResourceQueueTest : public testing::Test,
 
  private:
   MessageLoop message_loop_;
-  content::TestBrowserThread ui_thread_;
-  content::TestBrowserThread io_thread_;
+  BrowserThreadImpl ui_thread_;
+  BrowserThreadImpl io_thread_;
 };
 
 TEST_F(ResourceQueueTest, Basic) {