Network Service: Disallow Reporting/NEL uploads

Reporting specifies that the user agent should allow users to prohibit
uploads on a per-origin basis.  The Network Service's NetworkDelegate
needs to actively disallow Reporting uploads until we're able to hook
up the permissions manager across the service boundary.

Bug: 845559
Cq-Include-Trybots: luci.chromium.try:linux_mojo;master.tryserver.chromium.android:android_cronet_tester;master.tryserver.chromium.mac:ios-simulator-cronet
Change-Id: Ib63890e3b045c0067969a70628191530a96d482f
Reviewed-on: https://chromium-review.googlesource.com/1171571Reviewed-by: Matt Menke <mmenke@chromium.org>
Commit-Queue: Douglas Creager <dcreager@chromium.org>
Cr-Commit-Position: refs/heads/master@{#582654}

services/network/network_service_network_delegate.cc

@@ -52,4 +52,36 @@ bool NetworkServiceNetworkDelegate::OnCanAccessFile(
   return true;
 }
 
+bool NetworkServiceNetworkDelegate::OnCanQueueReportingReport(
+    const url::Origin& origin) const {
+  // TODO(crbug.com/845559): Disable all Reporting uploads until we can perform
+  // a BACKGROUND_SYNC permissions check across service boundaries.
+  return false;
+}
+
+void NetworkServiceNetworkDelegate::OnCanSendReportingReports(
+    std::set<url::Origin> origins,
+    base::OnceCallback<void(std::set<url::Origin>)> result_callback) const {
+  // TODO(crbug.com/845559): Disable all Reporting uploads until we can perform
+  // a BACKGROUND_SYNC permissions check across service boundaries.
+  origins.clear();
+  std::move(result_callback).Run(std::move(origins));
+}
+
+bool NetworkServiceNetworkDelegate::OnCanSetReportingClient(
+    const url::Origin& origin,
+    const GURL& endpoint) const {
+  // TODO(crbug.com/845559): Disable all Reporting uploads until we can perform
+  // a BACKGROUND_SYNC permissions check across service boundaries.
+  return false;
+}
+
+bool NetworkServiceNetworkDelegate::OnCanUseReportingClient(
+    const url::Origin& origin,
+    const GURL& endpoint) const {
+  // TODO(crbug.com/845559): Disable all Reporting uploads until we can perform
+  // a BACKGROUND_SYNC permissions check across service boundaries.
+  return false;
+}
+
 }  // namespace network

services/network/network_service_network_delegate.h

@@ -32,6 +32,15 @@ class COMPONENT_EXPORT(NETWORK_SERVICE) NetworkServiceNetworkDelegate
                        const base::FilePath& original_path,
                        const base::FilePath& absolute_path) const override;
 
+  bool OnCanQueueReportingReport(const url::Origin& origin) const override;
+  void OnCanSendReportingReports(std::set<url::Origin> origins,
+                                 base::OnceCallback<void(std::set<url::Origin>)>
+                                     result_callback) const override;
+  bool OnCanSetReportingClient(const url::Origin& origin,
+                               const GURL& endpoint) const override;
+  bool OnCanUseReportingClient(const url::Origin& origin,
+                               const GURL& endpoint) const override;
+
   NetworkContext* network_context_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkServiceNetworkDelegate);