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

third_party/WebKit/Source/bindings/core/v8/ActivityLoggerTest.cpp

 // Copyright 2014 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 "bindings/core/v8/ScriptController.h"
 #include "bindings/core/v8/ScriptSourceCode.h"
 #include "bindings/core/v8/V8BindingForCore.h"
 #include "bindings/core/v8/V8DOMActivityLogger.h"
 #include "core/frame/FrameTestHelpers.h"
 #include "core/frame/WebLocalFrameBase.h"
@@ skipping 52 matching lines @@
       EXPECT_STREQ(expected[i].Utf8().data(),
                    logged_activities_[i].Utf8().data());
     }
     return logged_activities_ == expected;
   }
 
  private:
   Vector<String> logged_activities_;
 };
 
-class ActivityLoggerTest : public testing::Test {
+class ActivityLoggerTest : public ::testing::Test {
  protected:
   ActivityLoggerTest() {
     activity_logger_ = new TestActivityLogger();
     V8DOMActivityLogger::SetActivityLogger(kIsolatedWorldId, String(),
                                            WTF::WrapUnique(activity_logger_));
     web_view_helper_.Initialize();
     script_controller_ = &web_view_helper_.WebView()
                               ->MainFrameImpl()
                               ->GetFrame()
                               ->GetScriptController();
@@ skipping 504 matching lines @@
       "blinkRequestResource | Script | data:text/html;charset=utf-8,D\n"
       "blinkRequestResource | XMLHttpRequest | data:text/html;charset=utf-8,E\n"
       "blinkRequestResource | Image | data:text/html;charset=utf-8,B\n";
   ExecuteScriptInMainWorld(code);
   ASSERT_TRUE(VerifyActivities(""));
   ExecuteScriptInIsolatedWorld(code);
   ASSERT_TRUE(VerifyActivities(expected_activities));
 }
 
 }  // namespace blink