Be explicit about namespace testing to not mix it with blink::testing

third_party/WebKit/Source/modules/credentialmanager/CredentialsContainerTest.cpp

 // Copyright 2017 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/credentialmanager/CredentialsContainer.h"
 
 #include <memory>
 
 #include "bindings/core/v8/V8BindingForTesting.h"
 #include "bindings/core/v8/V8GCController.h"
@@ skipping 32 matching lines @@
 // Make sure that the renderer doesn't crash if got a credential.
 TEST(CredentialsContainerTest, TestGetWithDocumentDestroyed) {
   CredentialsContainer* credential_container = CredentialsContainer::Create();
   std::unique_ptr<WebCredentialManagerClient::RequestCallbacks> get_callback;
 
   V8TestingScope scope;
   {
     // Set up.
     scope.GetDocument().SetSecurityOrigin(
         SecurityOrigin::CreateFromString("https://example.test"));
-    testing::StrictMock<MockCredentialManagerClient> mock_client;
+    ::testing::StrictMock<MockCredentialManagerClient> mock_client;
     ProvideCredentialManagerClientTo(scope.GetPage(),
                                      new CredentialManagerClient(&mock_client));
 
     // Request a credential.
     WebCredentialManagerClient::RequestCallbacks* callback = nullptr;
     EXPECT_CALL(mock_client, DispatchGet(_, _, _, _))
         .WillOnce(SaveArg<3>(&callback));
     credential_container->get(scope.GetScriptState(),
                               CredentialRequestOptions());
 
     ASSERT_TRUE(callback);
     get_callback.reset(callback);
   }
 
   // Garbage collect v8::Context.
   V8GCController::CollectAllGarbageForTesting(v8::Isolate::GetCurrent());
 
   // Invoking the callback shouldn't crash.
   get_callback->OnSuccess(std::unique_ptr<WebCredential>());
 }
 
 }  // namespace blink