[sensors] Add Permission guard to the generic sensor apis.

third_party/WebKit/Source/modules/sensor/SensorProviderProxy.cpp

 // Copyright 2016 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 "modules/sensor/SensorProviderProxy.h"
 
 #include "modules/sensor/SensorProxy.h"
 #include "platform/mojo/MojoHelper.h"
 #include "public/platform/InterfaceProvider.h"
 #include "public/platform/Platform.h"
 
 namespace blink {
 
 // SensorProviderProxy
 SensorProviderProxy::SensorProviderProxy(LocalFrame& frame)
     : Supplement<LocalFrame>(frame) {}
 
 void SensorProviderProxy::InitializeIfNeeded(LocalFrame* frame) {
   if (IsInitialized())
     return;
 
   frame->GetInterfaceProvider()->GetInterface(
       mojo::MakeRequest(&sensor_provider_));
   sensor_provider_.set_connection_error_handler(ConvertToBaseCallback(
       WTF::Bind(&SensorProviderProxy::OnSensorProviderConnectionError,
                 WrapWeakPersistent(this))));
+  // Get permission service.
+  frame->GetInterfaceProvider()->GetInterface(
+      mojo::MakeRequest(&permission_service_));
+  permission_service_.set_connection_error_handler(ConvertToBaseCallback(
+      WTF::Bind(&SensorProviderProxy::OnSensorProviderConnectionError,
+                WrapWeakPersistent(this))));
 }
 
 const char* SensorProviderProxy::SupplementName() {
   return "SensorProvider";
 }
 
 // static
 SensorProviderProxy* SensorProviderProxy::From(LocalFrame* frame) {
   DCHECK(frame);
   SensorProviderProxy* provider_proxy = static_cast<SensorProviderProxy*>(
       Supplement<LocalFrame>::From(*frame, SupplementName()));
   if (!provider_proxy) {
     provider_proxy = new SensorProviderProxy(*frame);
     Supplement<LocalFrame>::ProvideTo(*frame, SupplementName(), provider_proxy);
   }
   provider_proxy->InitializeIfNeeded(frame);
   return provider_proxy;
 }
 
 SensorProviderProxy::~SensorProviderProxy() {}
 
+void SensorProviderProxy::resetPermissionService() {
+  permission_service_.reset();
+}
+
 DEFINE_TRACE(SensorProviderProxy) {
   visitor->Trace(sensor_proxies_);
   Supplement<LocalFrame>::Trace(visitor);
 }
 
 SensorProxy* SensorProviderProxy::CreateSensorProxy(
     device::mojom::blink::SensorType type,
-    Page* page) {
+    Page* page,
+    RefPtr<SecurityOrigin> origin) {
   DCHECK(!GetSensorProxy(type));
 
-  SensorProxy* sensor = new SensorProxy(type, this, page);
+  SensorProxy* sensor = new SensorProxy(type, std::move(origin), this, page);
   sensor_proxies_.insert(sensor);
 
   return sensor;
 }
 
 SensorProxy* SensorProviderProxy::GetSensorProxy(
     device::mojom::blink::SensorType type) {
   for (SensorProxy* sensor : sensor_proxies_) {
     // TODO(Mikhail) : Hash sensors by type for efficiency.
     if (sensor->GetType() == type)
       return sensor;
   }
 
   return nullptr;
 }
 
 void SensorProviderProxy::OnSensorProviderConnectionError() {
+  permission_service_.reset();
   sensor_provider_.reset();
   for (SensorProxy* sensor : sensor_proxies_)
     sensor->HandleSensorError();
 }
 
 }  // namespace blink