Move download stuff from download helper back to TabContents. This is basically a revert of r8576...

chrome/browser/download/download_request_limiter_unittest.cc

 // Copyright (c) 2011 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/download/download_request_limiter.h"
-#include "chrome/browser/ui/tab_contents/test_tab_contents_wrapper.h"
 #include "chrome/test/testing_profile.h"
 #include "content/browser/browser_thread.h"
+#include "content/browser/renderer_host/test_render_view_host.h"
 #include "content/browser/tab_contents/navigation_controller.h"
 #include "content/browser/tab_contents/test_tab_contents.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 class DownloadRequestLimiterTest
-    : public TabContentsWrapperTestHarness,
+    : public RenderViewHostTestHarness,
       public DownloadRequestLimiter::Callback {
  public:
   DownloadRequestLimiterTest()
       : ui_thread_(BrowserThread::UI, &message_loop_),
         io_thread_(BrowserThread::IO, &message_loop_) {
   }
 
   virtual void SetUp() {
-    TabContentsWrapperTestHarness::SetUp();
+    RenderViewHostTestHarness::SetUp();
 
     allow_download_ = true;
     ask_allow_count_ = cancel_count_ = continue_count_ = 0;
 
     download_request_limiter_ = new DownloadRequestLimiter();
     test_delegate_.reset(new DownloadRequestLimiterTestDelegate(this));
     DownloadRequestLimiter::SetTestingDelegate(test_delegate_.get());
   }
 
   virtual void TearDown() {
     DownloadRequestLimiter::SetTestingDelegate(NULL);
 
-    TabContentsWrapperTestHarness::TearDown();
+    RenderViewHostTestHarness::TearDown();
   }
 
   virtual void ContinueDownload() {
     continue_count_++;
   }
   virtual void CancelDownload() {
     cancel_count_++;
   }
 
   void CanDownload() {
@@ skipping 144 matching lines @@
   // And make sure we really can't download.
   ask_allow_count_ = continue_count_ = cancel_count_ = 0;
   CanDownload();
   ASSERT_EQ(0, ask_allow_count_);
   ASSERT_EQ(0, continue_count_);
   ASSERT_EQ(1, cancel_count_);
   // And the state shouldn't have changed.
   ASSERT_EQ(DownloadRequestLimiter::DOWNLOADS_NOT_ALLOWED,
             download_request_limiter_->GetDownloadStatus(contents()));
 }