cc: Unify namespaces for all test files

cc/test/fake_graphics_context_3d_unittest.cc

Index: cc/test/fake_graphics_context_3d_unittest.cc
diff --git a/cc/test/fake_graphics_context_3d_unittest.cc b/cc/test/fake_graphics_context_3d_unittest.cc
index bea0bdf8cf25daaaaf4645806ba84fa85225b278..01f1fbff72a7edef75f4f5cbef6493e03e9ec7e0 100644
--- a/cc/test/fake_graphics_context_3d_unittest.cc
+++ b/cc/test/fake_graphics_context_3d_unittest.cc
@@ -8,6 +8,9 @@
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+namespace cc {
+namespace {
+
 class ContextThatCountsMakeCurrents : public WebKit::FakeWebGraphicsContext3D {
 public:
     ContextThatCountsMakeCurrents() : m_makeCurrentCount(0) { }
@@ -29,3 +32,6 @@ TEST(FakeGraphicsContext3DTest, ContextCreationShouldNotMakeCurrent)
     EXPECT_TRUE(context.get());
     EXPECT_EQ(0, context->makeCurrentCount());
 }
+
+}  // namespace
+}  // namespace cc