Use struct instead of class for forward declaration of CrashReason as we define it as struct.

git-svn-id: https://google-glog.googlecode.com/svn/trunk@44 eb4d4688-79bd-11dd-afb4-1d65580434c0

src/glog/logging.h.in

@@ -840,7 +840,7 @@ namespace glog_internal_namespace_ {
 template <bool>
 struct CompileAssert {
 };
-class CrashReason;
+struct CrashReason;
 }  // namespace glog_internal_namespace_
 
 #define GOOGLE_GLOG_COMPILE_ASSERT(expr, msg) \

src/windows/glog/logging.h

@@ -844,7 +844,7 @@ namespace glog_internal_namespace_ {
 template <bool>
 struct CompileAssert {
 };
-class CrashReason;
+struct CrashReason;
 }  // namespace glog_internal_namespace_
 
 #define GOOGLE_GLOG_COMPILE_ASSERT(expr, msg) \