reintroduce InterceptDownloadResourceThrottle for some OMA DRM downloads

chrome/browser/BUILD.gn

Index: chrome/browser/BUILD.gn
diff --git a/chrome/browser/BUILD.gn b/chrome/browser/BUILD.gn
index b419498aec853124c8a5c968cef9a26d22912f16..9fa2fe333c66cd2269202078b15e12f9fc3bfc24 100644
--- a/chrome/browser/BUILD.gn
+++ b/chrome/browser/BUILD.gn
@@ -2632,6 +2632,8 @@ split_static_library("browser") {
       "android/download/download_manager_service.h",
       "android/download/duplicate_download_infobar_delegate.cc",
       "android/download/duplicate_download_infobar_delegate.h",
+      "android/download/intercept_download_resource_throttle.cc",

[David Trainor- moved to gerrit, 2017/01/24 17:13:35]

Were these files removed?  I don't see them on the CL.

[qinmin, 2017/01/24 17:32:23]

sorry, the files are now added

+      "android/download/intercept_download_resource_throttle.h",
       "android/download/mock_download_controller.cc",
       "android/download/mock_download_controller.h",
       "android/download/ui/thumbnail_provider.cc",