Fixed release compilation error-warnings.

BUG=
TEST=

Review URL: http://webrtc-codereview.appspot.com/290004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@1006 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/src/video_engine/test/auto_test/source/vie_autotest_main.cc b/src/video_engine/test/auto_test/source/vie_autotest_main.cc
index 3197399..d73c461 100644
--- a/src/video_engine/test/auto_test/source/vie_autotest_main.cc
+++ b/src/video_engine/test/auto_test/source/vie_autotest_main.cc
@@ -44,7 +44,7 @@
     ViETest::Log("\t 0. Go back to previous menu.");
 
     // Print all test method choices. Assumes that map sorts on its key.
-    int last_valid_choice;
+    int last_valid_choice = 0;
     std::map<int, std::string>::const_iterator iterator;
     for (iterator = index_to_test_method_map_.begin();
         iterator != index_to_test_method_map_.end();
@@ -113,7 +113,7 @@
   ViEAutoTest vieAutoTest(windowManager->GetWindow1(),
                           windowManager->GetWindow2());
 
-  int errors;
+  int errors = 0;
   switch (choice) {
     case 7: errors = vieAutoTest.ViELoopbackCall();  break;
     case 8: errors = vieAutoTest.ViECustomCall();    break;