permissionrequest API for guest Download.

android_webview/native/aw_web_contents_delegate.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "android_webview/native/aw_web_contents_delegate.h"
 
 #include "android_webview/browser/find_helper.h"
 #include "android_webview/native/aw_contents.h"
 #include "android_webview/native/aw_javascript_dialog_manager.h"
 #include "base/android/scoped_java_ref.h"
@@ skipping 34 matching lines @@
   AwContents* aw_contents = AwContents::FromWebContents(web_contents);
   if (!aw_contents)
     return;
 
   aw_contents->GetFindHelper()->HandleFindReply(request_id,
                                                 number_of_matches,
                                                 active_match_ordinal,
                                                 final_update);
 }
 
-bool AwWebContentsDelegate::CanDownload(content::RenderViewHost* source,
-                                        int request_id,
-                                        const std::string& request_method) {
+void AwWebContentsDelegate::CanDownload(
+    content::RenderViewHost* source,
+    int request_id,
+    const std::string& request_method,
+    const base::Callback<void(bool)>& callback) {
   // Android webview intercepts download in its resource dispatcher host
   // delegate, so should not reach here.
   NOTREACHED();
-  return false;
+  callback.Run(false);
 }
 
 void AwWebContentsDelegate::AddNewContents(content::WebContents* source,
                                            content::WebContents* new_contents,
                                            WindowOpenDisposition disposition,
                                            const gfx::Rect& initial_pos,
                                            bool user_gesture,
                                            bool* was_blocked) {
   JNIEnv* env = AttachCurrentThread();
 
@@ skipping 46 matching lines @@
   if (java_delegate.obj()) {
     Java_AwWebContentsDelegate_activateContents(env, java_delegate.obj());
   }
 }
 
 bool RegisterAwWebContentsDelegate(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace android_webview