Move creation and ownership of DownloadManager from the embedder to content. This matches all the o…

chrome/browser/download/chrome_download_manager_delegate_unittest.cc

Index: chrome/browser/download/chrome_download_manager_delegate_unittest.cc
===================================================================
--- chrome/browser/download/chrome_download_manager_delegate_unittest.cc	(revision 140592)
+++ chrome/browser/download/chrome_download_manager_delegate_unittest.cc	(working copy)
@@ -201,6 +201,7 @@
 
   // ::testing::Test
   virtual void SetUp() OVERRIDE;
+  virtual void TearDown() OVERRIDE;
 
   // Verifies and clears test expectations for |delegate_| and
   // |download_manager_|.
@@ -268,6 +269,10 @@
   SetDefaultDownloadPath(test_download_dir_.path());
 }
 
+void ChromeDownloadManagerDelegateTest::TearDown() {
+  delegate_->Shutdown();
+}
+
 void ChromeDownloadManagerDelegateTest::VerifyAndClearExpectations() {
   ::testing::Mock::VerifyAndClearExpectations(delegate_);
   ::testing::Mock::VerifyAndClearExpectations(download_manager_);