Fix a compile warning in stack_frame_symbolizer.cc

http://breakpad.appspot.com/493002/


git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1074 4c0a9323-5329-0410-9bdc-e9ce6186880e

src/processor/stack_frame_symbolizer.cc

@@ -112,6 +112,10 @@ StackFrameSymbolizer::SymbolizerResult StackFrameSymbolizer::FillSourceLineInfo(
 
     case SymbolSupplier::INTERRUPT:
       return INTERRUPT;
+
+    default:
+      BPLOG(ERROR) << "Unknown SymbolResult enum: " << symbol_result;
+      return ERROR;
   }
 }