Revert "Update all users of base::Version to explicitly specify the namespace, and clean up the hea…

chrome/installer/setup/install_unittest.cc

Index: chrome/installer/setup/install_unittest.cc
diff --git a/chrome/installer/setup/install_unittest.cc b/chrome/installer/setup/install_unittest.cc
index 5164ee3ff2950e85b0518d75bcd92596ac6acea3..99337d01644131d114d6d0a50fbecdf17ea6b878 100644
--- a/chrome/installer/setup/install_unittest.cc
+++ b/chrome/installer/setup/install_unittest.cc
@@ -38,7 +38,7 @@ class CreateVisualElementsManifestTest : public testing::Test {
     // Create a temp directory for testing.
     ASSERT_TRUE(test_dir_.CreateUniqueTempDir());
 
-    version_ = base::Version("0.0.0.0");
+    version_ = Version("0.0.0.0");
 
     version_dir_ = test_dir_.path().AppendASCII(version_.GetString());
     ASSERT_TRUE(base::CreateDirectory(version_dir_));
@@ -56,7 +56,7 @@ class CreateVisualElementsManifestTest : public testing::Test {
   base::ScopedTempDir test_dir_;
 
   // A dummy version number used to create the version directory.
-  base::Version version_;
+  Version version_;
 
   // The path to |test_dir_|\|version_|.
   base::FilePath version_dir_;