Add missing constructor to CPPLanguage class to make it compile with CLang.

P=rafael.espindola R=jimb at https://bugzilla.mozilla.org/show_bug.cgi?id=623121

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@764 4c0a9323-5329-0410-9bdc-e9ce6186880e

src/common/language.cc

@@ -39,6 +39,7 @@ namespace google_breakpad {
 // C++ language-specific operations.
 class CPPLanguage: public Language {
  public:
+  CPPLanguage() {}
   string MakeQualifiedName(const string &parent_name,
                            const string &name) const {
     if (parent_name.empty())