Move ui_test_utils::RunMessageLoop to test_utils so that it can be reused by content_browsertests.

chrome/browser/download/download_test_observer.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 <vector>
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/message_loop.h"
 #include "base/stl_util.h"
@@ skipping 53 matching lines @@
 
 void DownloadTestObserver::Init() {
   download_manager_->AddObserver(this);  // Will call initial ModelChanged().
   finished_downloads_at_construction_ = finished_downloads_.size();
   states_observed_.clear();
 }
 
 void DownloadTestObserver::WaitForFinished() {
   if (!IsFinished()) {
     waiting_ = true;
-    ui_test_utils::RunMessageLoop();
+    content::RunMessageLoop();
     waiting_ = false;
   }
 }
 
 bool DownloadTestObserver::IsFinished() const {
   if (finished_downloads_.size() - finished_downloads_at_construction_ >=
       wait_count_)
     return true;
   return (finish_on_select_file_ && select_file_dialog_seen_);
 }
@@ skipping 177 matching lines @@
 }
 
 DownloadTestFlushObserver::DownloadTestFlushObserver(
     DownloadManager* download_manager)
     : download_manager_(download_manager),
       waiting_for_zero_inprogress_(true) {}
 
 void DownloadTestFlushObserver::WaitForFlush() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   download_manager_->AddObserver(this);
-  ui_test_utils::RunMessageLoop();
+  content::RunMessageLoop();
 }
 
 void DownloadTestFlushObserver::ModelChanged(DownloadManager* manager) {
   // Model has changed, so there may be more DownloadItems to observe.
   CheckDownloadsInProgress(true);
 }
 
 void DownloadTestFlushObserver::OnDownloadUpdated(DownloadItem* download) {
   // The REMOVING state indicates that the download is being destroyed.
   // Stop observing.  Do not do anything with it, as it is about to be gone.
@@ skipping 87 matching lines @@
 }
 
 DownloadTestItemCreationObserver::~DownloadTestItemCreationObserver() {
 }
 
 void DownloadTestItemCreationObserver::WaitForDownloadItemCreation() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   if (called_back_count_ == 0) {
     waiting_ = true;
-    ui_test_utils::RunMessageLoop();
+    content::RunMessageLoop();
     waiting_ = false;
   }
 }
 
 void DownloadTestItemCreationObserver::DownloadItemCreationCallback(
     content::DownloadId download_id, net::Error error) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   download_id_ = download_id;
   error_ = error;
   ++called_back_count_;
   DCHECK_EQ(1u, called_back_count_);
 
   if (waiting_)
     MessageLoopForUI::current()->Quit();
 }
 
 const content::DownloadUrlParameters::OnStartedCallback
     DownloadTestItemCreationObserver::callback() {
   return base::Bind(
       &DownloadTestItemCreationObserver::DownloadItemCreationCallback, this);
 }