Move remaining content test code into the content namespace.

content/public/test/accessibility_test_utils_win.h

Index: content/public/test/accessibility_test_utils_win.h
===================================================================
--- content/public/test/accessibility_test_utils_win.h	(revision 164732)
+++ content/public/test/accessibility_test_utils_win.h	(working copy)
@@ -10,6 +10,8 @@
 #include "base/basictypes.h"
 #include "base/string16.h"
 
+namespace content {
+
 string16 IAccessibleRoleToString(int32 ia_role);
 string16 IAccessible2RoleToString(int32 ia_role);
 string16 IAccessibleStateToString(int32 ia_state);
@@ -19,4 +21,6 @@
 void IAccessible2StateToStringVector(int32 ia_state,
                                      std::vector<string16>* result);
 
+}  // namespace content
+
 #endif  // CONTENT_PUBLIC_TEST_ACCESSIBILITY_TEST_UTILS_WIN_H_