Replace the DownloadFileManager with direct ownership of DownloadFileImpl

content/browser/download/mock_download_file.h

Index: content/browser/download/mock_download_file.h
diff --git a/content/browser/download/mock_download_file.h b/content/browser/download/mock_download_file.h
index 34bcb54c9d608b720ef5c10f566bbb7988324759..f5a1b6e93b8bc514c7ad73ef9ef74d5ca122214e 100644
--- a/content/browser/download/mock_download_file.h
+++ b/content/browser/download/mock_download_file.h
@@ -24,7 +24,7 @@ class MockDownloadFile : virtual public content::DownloadFile {
   virtual ~MockDownloadFile();
 
   // DownloadFile functions.
-  MOCK_METHOD0(Initialize, content::DownloadInterruptReason());
+  MOCK_METHOD1(Initialize, void(const InitializeCallback&));
   MOCK_METHOD2(AppendDataToFile, content::DownloadInterruptReason(
       const char* data, size_t data_len));
   MOCK_METHOD1(Rename, content::DownloadInterruptReason(
@@ -32,7 +32,7 @@ class MockDownloadFile : virtual public content::DownloadFile {
   MOCK_METHOD3(Rename, void(const FilePath& full_path,
                             bool overwrite_existing_file,
                             const RenameCompletionCallback& callback));
-  MOCK_METHOD0(Detach, void());
+  MOCK_METHOD1(Detach, void(base::Closure));
   MOCK_METHOD0(Cancel, void());
   MOCK_METHOD0(Finish, void());
   MOCK_METHOD0(AnnotateWithSourceInformation, void());
@@ -42,7 +42,6 @@ class MockDownloadFile : virtual public content::DownloadFile {
   MOCK_CONST_METHOD0(CurrentSpeed, int64());
   MOCK_METHOD1(GetHash, bool(std::string* hash));
   MOCK_METHOD0(GetHashState, std::string());
-  MOCK_METHOD0(CancelDownloadRequest, void());
   MOCK_METHOD0(SendUpdate, void());
   MOCK_CONST_METHOD0(Id, int());
   MOCK_METHOD0(GetDownloadManager, content::DownloadManager*());