Fix some grammar in content/browser/geolocation/

content/browser/geolocation/mock_location_provider.cc

 // Copyright (c) 2011 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.
 
 // This file implements a mock location provider and the factory functions for
 // various ways of creating it.
 
 #include "content/browser/geolocation/mock_location_provider.h"
 
 #include "base/bind.h"
@@ skipping 44 matching lines @@
 }
 
 void MockLocationProvider::GetPosition(Geoposition* position) {
   *position = position_;
 }
 
 void MockLocationProvider::OnPermissionGranted(const GURL& requesting_frame) {
   permission_granted_url_ = requesting_frame;
 }
 
-// Mock location provider that automatically calls back it's client at most
+// Mock location provider that automatically calls back its client at most
 // once, when StartProvider or OnPermissionGranted is called. Use
 // |requires_permission_to_start| to select which event triggers the callback.
 class AutoMockLocationProvider : public MockLocationProvider {
  public:
   AutoMockLocationProvider(bool has_valid_location,
                            bool requires_permission_to_start)
       : MockLocationProvider(&instance_),
         ALLOW_THIS_IN_INITIALIZER_LIST(weak_factory_(this)),
         requires_permission_to_start_(requires_permission_to_start),
         listeners_updated_(false) {
@@ skipping 46 matching lines @@
   return new AutoMockLocationProvider(true, false);
 }
 
 LocationProviderBase* NewAutoFailMockLocationProvider() {
   return new AutoMockLocationProvider(false, false);
 }
 
 LocationProviderBase* NewAutoSuccessMockNetworkLocationProvider() {
   return new AutoMockLocationProvider(true, true);
 }