reintroduce InterceptDownloadResourceThrottle for some OMA DRM downloads

chrome/android/java/src/org/chromium/chrome/browser/download/ChromeDownloadDelegate.java

Index: chrome/android/java/src/org/chromium/chrome/browser/download/ChromeDownloadDelegate.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/download/ChromeDownloadDelegate.java b/chrome/android/java/src/org/chromium/chrome/browser/download/ChromeDownloadDelegate.java
index 437c88db1bf0a4a71898d48432b6985a9a72e946..e37463adbe4078ca01413d97700bee5f788fdd2e 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/download/ChromeDownloadDelegate.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/download/ChromeDownloadDelegate.java
@@ -311,6 +311,30 @@ public class ChromeDownloadDelegate {
     }
 
     /**
+     * Enqueue a request to download a file using Android DownloadManager.
+     * @param url Url to download.
+     * @param userAgent User agent to use.
+     * @param contentDisposition Content disposition of the request.
+     * @param mimeType MIME type.
+     * @param cookie Cookie to use.
+     * @param referer Referrer to use.
+     */
+    @CalledByNative
+    private void enqueueDownloadManagerRequest(String url, String userAgent,
+            String contentDisposition, String mimeType, String cookie, String referer) {

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

s/referer/referrer?

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

Done.

+        DownloadInfo downloadInfo = new DownloadInfo.Builder()
+                .setUrl(url)
+                .setUserAgent(userAgent)
+                .setContentDisposition(contentDisposition)
+                .setMimeType(mimeType)
+                .setCookie(cookie)
+                .setReferrer(referer)
+                .setIsGETRequest(true)
+                .build();
+        enqueueDownloadManagerRequest(downloadInfo);
+    }
+
+    /**
      * Called when download starts.
      *
      * @param filename Name of the file.