sync: don't allow NULL profile in ProfileSyncService and friends

chrome/browser/sync/glue/shared_change_processor_unittest.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 "chrome/browser/sync/glue/shared_change_processor.h"
 
 #include <cstddef>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 19 matching lines @@
 ACTION_P(GetWeakPtrToSyncableService, syncable_service) {
   // Have to do this within an Action to ensure it's not evaluated on the wrong
   // thread.
   return syncable_service->AsWeakPtr();
 }
 
 class SyncSharedChangeProcessorTest : public testing::Test {
  public:
   SyncSharedChangeProcessorTest()
       : ui_thread_(BrowserThread::UI, &ui_loop_),
-        db_thread_(BrowserThread::DB) {}
+        db_thread_(BrowserThread::DB),
+        sync_service_(&profile_) {}
 
   virtual ~SyncSharedChangeProcessorTest() {
     EXPECT_FALSE(db_syncable_service_.get());
   }
 
  protected:
   virtual void SetUp() OVERRIDE {
     shared_change_processor_ = new SharedChangeProcessor();
     db_thread_.Start();
     EXPECT_TRUE(BrowserThread::PostTask(
@@ skipping 59 matching lines @@
         syncer::AUTOFILL,
         base::WeakPtr<syncer::SyncMergeResult>()));
   }
 
   base::MessageLoopForUI ui_loop_;
   content::TestBrowserThread ui_thread_;
   content::TestBrowserThread db_thread_;
 
   scoped_refptr<SharedChangeProcessor> shared_change_processor_;
   NiceMock<ProfileSyncComponentsFactoryMock> sync_factory_;
+  TestingProfile profile_;
   NiceMock<ProfileSyncServiceMock> sync_service_;
   StrictMock<DataTypeErrorHandlerMock> error_handler_;
 
   // Used only on DB thread.
   scoped_ptr<syncer::FakeSyncableService> db_syncable_service_;
 };
 
 // Simply connect the shared change processor.  It should succeed, and
 // nothing further should happen.
 TEST_F(SyncSharedChangeProcessorTest, Basic) {
   Connect();
 }
 
 }  // namespace
 
 }  // namespace browser_sync