more content exports needed for unit_tests and browser_tests.

content/browser/download/download_file_manager.h

Index: content/browser/download/download_file_manager.h
diff --git a/content/browser/download/download_file_manager.h b/content/browser/download/download_file_manager.h
index 0838e400b8752e0bd56b1fc85afd5e8c76588ff7..20a2b6a4c4633372a7759889c50f5ecc40f4abfe 100644
--- a/content/browser/download/download_file_manager.h
+++ b/content/browser/download/download_file_manager.h
@@ -68,13 +68,13 @@ class URLRequestContextGetter;
 }
 
 // Manages all in progress downloads.
-class DownloadFileManager
+class CONTENT_EXPORT DownloadFileManager
     : public base::RefCountedThreadSafe<DownloadFileManager> {
  public:
   explicit DownloadFileManager(ResourceDispatcherHost* rdh);
 
   // Called on shutdown on the UI thread.
-  CONTENT_EXPORT void Shutdown();
+  void Shutdown();
 
   // Called on UI thread to make DownloadFileManager start the download.
   void StartDownload(DownloadCreateInfo* info);