webrtc/base: Use RTC_DCHECK() instead of assert()

webrtc/base/flags.cc

Index: webrtc/base/flags.cc
diff --git a/webrtc/base/flags.cc b/webrtc/base/flags.cc
index 248c5c3f185e974a00a34112ba69dd892467066b..a138b8fb9b6812c9e7d680d90de58de19504da1f 100644
--- a/webrtc/base/flags.cc
+++ b/webrtc/base/flags.cc
@@ -8,18 +8,19 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
+#include "webrtc/base/flags.h"
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
+#include "webrtc/base/checks.h"
 
 #if defined(WEBRTC_WIN)
 #include "webrtc/base/win32.h"
 #include <shellapi.h>
 #endif
 
-#include "webrtc/base/flags.h"
-
 namespace rtc {
 // -----------------------------------------------------------------------------
 // Implementation of Flag
@@ -256,7 +257,8 @@ int FlagList::SetFlagsFromCommandLine(int* argc, const char** argv,
 }
 
 void FlagList::Register(Flag* flag) {
-  assert(flag != NULL && strlen(flag->name()) > 0);
+  RTC_DCHECK(flag);
+  RTC_DCHECK_GT(strlen(flag->name()), 0u);
   // NOTE: Don't call Lookup() within Register because it accesses the name_
   // of other flags in list_, and if the flags are coming from two different
   // compilation units, the initialization order between them is undefined, and