Add a mechanism to pause and resume geolocation requests.

content/browser/geolocation/geolocation_provider_impl.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 "content/browser/geolocation/geolocation_provider_impl.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/location.h"
@@ skipping 215 matching lines @@
   delete arbitrator_;
   arbitrator_ = NULL;
 }
 
 LocationArbitrator* GeolocationProviderImpl::CreateArbitrator() {
   LocationArbitratorImpl::LocationUpdateCallback callback = base::Bind(
       &GeolocationProviderImpl::OnLocationUpdate, base::Unretained(this));
   return new LocationArbitratorImpl(callback);
 }
 
+void GeolocationProviderImpl::PauseAllLocationUpdateCallbacks() {
+  if (!IsRunning()) return;
+  if (!OnGeolocationThread()) {
+    message_loop()->PostTask(
+        FROM_HERE,
+        base::Bind(&GeolocationProviderImpl::PauseAllLocationUpdateCallbacks,
+                   base::Unretained(this)));
+    return;
+  }
+
+  DCHECK(OnGeolocationThread());
+  DCHECK(arbitrator_);
+  arbitrator_->PauseProviders();
+}
+
+void GeolocationProviderImpl::ResumeAllLocationUpdateCallbacks() {
+  if (!IsRunning()) return;
+  if (!OnGeolocationThread()) {
+    message_loop()->PostTask(
+        FROM_HERE,
+        base::Bind(&GeolocationProviderImpl::ResumeAllLocationUpdateCallbacks,
+                   base::Unretained(this)));
+    return;
+  }
+
+  DCHECK(OnGeolocationThread());
+  DCHECK(arbitrator_);
+  arbitrator_->ResumeProviders();
+}
+
 }  // namespace content