Adding WebContent-free Download

content/browser/download/download_resource_handler.h

Index: content/browser/download/download_resource_handler.h
diff --git a/content/browser/download/download_resource_handler.h b/content/browser/download/download_resource_handler.h
index 9c8f53dd8d2853d8fbc19edbc2c1a2be79e64761..89327110ecf6534a29c1c5fa1614927fbc24f6d0 100644
--- a/content/browser/download/download_resource_handler.h
+++ b/content/browser/download/download_resource_handler.h
@@ -81,6 +81,10 @@ class CONTENT_EXPORT DownloadResourceHandler
 
   std::string DebugString() const;
 
+  void set_parent_download_manager(DownloadManager* download_manager) {

[asanka, 2015/11/20 19:57:46]

Let's call this download_manager. The 'parent' relationship already sort-of
exists between an off-the-record profile and its parent profile and their
respective download managers.

[svaldez, 2015/11/23 15:18:56]

Done.

+    parent_download_manager_ = download_manager;
+  }
+
  private:
   ~DownloadResourceHandler() override;
 
@@ -127,6 +131,10 @@ class CONTENT_EXPORT DownloadResourceHandler
   // For DCHECKing
   bool on_response_started_called_;
 
+  // DownloadManager passed in by the owner of DownloadResourceHandler for cases
+  // where WebContents is not available.
+  DownloadManager* parent_download_manager_;
+
   static const int kReadBufSize = 32768;  // bytes
   static const int kThrottleTimeMs = 200;  // milliseconds