Cleanup namespace usage from animation to exported in platform/

Source/platform/animation/TimingFunctionTest.cpp

 /*
  * Copyright (c) 2013, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 34 matching lines @@
         << " (" << a.second->toString().latin1().data() << ")" \
         << " ==  " \
         << b.first \
         << " (" << b.second->toString().latin1().data() << ")" \
         << "\n";
 
 namespace blink {
 
 namespace {
 
-using namespace blink;
-
 class TimingFunctionTest : public ::testing::Test {
 public:
     void notEqualHelperLoop(Vector<std::pair<std::string, RefPtr<TimingFunction> > >& v)
     {
         for (size_t i = 0; i < v.size(); ++i) {
             for (size_t j = 0; j < v.size(); ++j) {
                 if (i == j)
                     continue;
                 EXPECT_NE_WITH_MESSAGE(v[i], v[j]);
             }
@@ skipping 345 matching lines @@
     EXPECT_EQ(0.50, stepsTimingCustomEnd->evaluate(0.74, 0));
     EXPECT_EQ(0.75, stepsTimingCustomEnd->evaluate(0.75, 0));
     EXPECT_EQ(0.75, stepsTimingCustomEnd->evaluate(0.99, 0));
     EXPECT_EQ(1.00, stepsTimingCustomEnd->evaluate(1.00, 0));
     EXPECT_EQ(1.00, stepsTimingCustomEnd->evaluate(2.00, 0));
 }
 
 } // namespace
 
 } // namespace blink