Move DownloadControllerAndroid from content/ to chrome/

content/browser/web_contents/web_contents_android.h

Index: content/browser/web_contents/web_contents_android.h
diff --git a/content/browser/web_contents/web_contents_android.h b/content/browser/web_contents/web_contents_android.h
index 7c890c351b6717febffcb49b22a9ae210ff0cda4..1b33122dd824e05845df25ec7d622771c2927c2a 100644
--- a/content/browser/web_contents/web_contents_android.h
+++ b/content/browser/web_contents/web_contents_android.h
@@ -21,6 +21,7 @@
 
 namespace content {
 
+class DownloadDelegate;
 class SynchronousCompositorClient;
 class WebContentsImpl;
 
@@ -190,6 +191,10 @@ class CONTENT_EXPORT WebContentsAndroid
     return synchronous_compositor_client_;
   }
 
+  void SetDownloadDelegate(DownloadDelegate* delegate);
+
+  DownloadDelegate* GetDownloadDelegate();
+
  private:
   RenderWidgetHostViewAndroid* GetRenderWidgetHostViewAndroid();
 
@@ -203,6 +208,7 @@ class CONTENT_EXPORT WebContentsAndroid
   NavigationControllerAndroid navigation_controller_;
   base::android::ScopedJavaGlobalRef<jobject> obj_;
   SynchronousCompositorClient* synchronous_compositor_client_;
+  DownloadDelegate* download_delegate_;
 
   base::WeakPtrFactory<WebContentsAndroid> weak_factory_;