Revert of Removing "using" declarations that import names in the C++ Standard library.

Source/web/tests/ScrollAnimatorNoneTest.cpp

Index: Source/web/tests/ScrollAnimatorNoneTest.cpp
diff --git a/Source/web/tests/ScrollAnimatorNoneTest.cpp b/Source/web/tests/ScrollAnimatorNoneTest.cpp
index e7c40bd0bf82f9ee9b38e029e910ad7ad780df47..8f63b83fb670548d7ae0d6c80ba27b5d967b48a1 100644
--- a/Source/web/tests/ScrollAnimatorNoneTest.cpp
+++ b/Source/web/tests/ScrollAnimatorNoneTest.cpp
@@ -37,6 +37,7 @@
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 
+using namespace std;
 using namespace WebCore;
 
 using testing::AtLeast;
@@ -276,9 +277,9 @@
 
     double deltaTime = m_data->m_lastAnimationTime - m_data->m_startTime;
     double timeLeft = m_data->m_animationTime - deltaTime;
-    double releaseTimeLeft = std::min(timeLeft, m_data->m_releaseTime);
-    double attackTimeLeft = std::max(0., m_data->m_attackTime - deltaTime);
-    double sustainTimeLeft = std::max(0., timeLeft - releaseTimeLeft - attackTimeLeft);
+    double releaseTimeLeft = min(timeLeft, m_data->m_releaseTime);
+    double attackTimeLeft = max(0., m_data->m_attackTime - deltaTime);
+    double sustainTimeLeft = max(0., timeLeft - releaseTimeLeft - attackTimeLeft);
 
     // If we're getting near the finish, the desired velocity can decrease since the time left gets increased.
     if (step * multiplier) {
@@ -306,9 +307,9 @@
 
     double deltaTime = m_data->m_lastAnimationTime - m_data->m_startTime;
     double timeLeft = m_data->m_animationTime - deltaTime;
-    double releaseTimeLeft = std::min(timeLeft, m_data->m_releaseTime);
-    double attackTimeLeft = std::max(0., m_data->m_attackTime - deltaTime);
-    double sustainTimeLeft = std::max(0., timeLeft - releaseTimeLeft - attackTimeLeft);
+    double releaseTimeLeft = min(timeLeft, m_data->m_releaseTime);
+    double attackTimeLeft = max(0., m_data->m_attackTime - deltaTime);
+    double sustainTimeLeft = max(0., timeLeft - releaseTimeLeft - attackTimeLeft);
     double distanceLeft = m_data->m_desiredPosition - *m_data->m_currentPosition;
 
     if (m_scrollingDown) {