[Android] New constant in chrome_constants

Chromium change:
https://chromium.googlesource.com/chromium/src/+/8c5f8763dda6616e36d8e4fe728c4778a0fd329f

Video Tutorials : Hooked up dependencies for the service

This CL adds :
1 - Sending Country code, and accept language to the server.
2 - Provides dependencies for video tutorial service creation.

TBR=dtrainor@chromium.org

Bug: 1133657

chromium_src/chrome/common/chrome_constants.cc

@@ -163,6 +163,8 @@ const base::FilePath::CharType kPreferencesFilename[] = FPL("Preferences");
 const base::FilePath::CharType kPreviewsOptOutDBFilename[] =
     FPL("previews_opt_out.db");
 const base::FilePath::CharType kQueryTileStorageDirname[] = FPL("Query Tiles");
+const base::FilePath::CharType kVideoTutorialsStorageDirname[] =
+    FPL("Video Tutorials");
 const base::FilePath::CharType kReadmeFilename[] = FPL("README");
 const base::FilePath::CharType kSecurePreferencesFilename[] =
     FPL("Secure Preferences");