[Downloads] Consolidate MOTW annotation APIs into a single API.

content/content_browser.gypi

Index: content/content_browser.gypi
diff --git a/content/content_browser.gypi b/content/content_browser.gypi
index 7aa2ca671b08d7fabedb6762fbdda2489c07ca44..611df3e9cbbe712b25621ba57adf13bb5a718d60 100644
--- a/content/content_browser.gypi
+++ b/content/content_browser.gypi
@@ -678,8 +678,6 @@
       'browser/dom_storage/session_storage_namespace_impl.h',
       'browser/download/base_file.cc',
       'browser/download/base_file.h',
-      'browser/download/base_file_linux.cc',
-      'browser/download/base_file_mac.cc',
       'browser/download/base_file_posix.cc',
       'browser/download/base_file_win.cc',
       'browser/download/download_create_info.cc',
@@ -713,12 +711,13 @@
       'browser/download/drag_download_file.h',
       'browser/download/drag_download_util.cc',
       'browser/download/drag_download_util.h',
-      'browser/download/file_metadata_linux.cc',
-      'browser/download/file_metadata_linux.h',
-      'browser/download/file_metadata_mac.h',
-      'browser/download/file_metadata_mac.mm',
       'browser/download/mhtml_generation_manager.cc',
       'browser/download/mhtml_generation_manager.h',
+      'browser/download/quarantine.h',
+      'browser/download/quarantine_constants_linux.h',
+      'browser/download/quarantine_linux.cc',
+      'browser/download/quarantine_mac.mm',
+      'browser/download/quarantine_win.cc',
       'browser/download/rate_estimator.cc',
       'browser/download/rate_estimator.h',
       'browser/download/save_file.cc',
@@ -1373,8 +1372,6 @@
       'browser/resolve_proxy_msg_helper.h',
       'browser/resource_context_impl.cc',
       'browser/resource_context_impl.h',
-      'browser/safe_util_win.cc',
-      'browser/safe_util_win.h',
       'browser/screen_orientation/screen_orientation_delegate_win.cc',
       'browser/screen_orientation/screen_orientation_delegate_win.h',
       'browser/screen_orientation/screen_orientation_dispatcher_host_impl.cc',