Allow unknown flags in test_main.cc.

Adds AllowCommandLineParsing to allow us to ignore "--no-sandbox" given
by new TSanV2 bots. Not ignoring this flag prevents the test from
running on this machine. Also removing unnecessary asserts that clutter
code.

BUG=
TEST=Locally running video_engine_tests with --no-sandbox.
R=stefan@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/2178004

git-svn-id: http://webrtc.googlecode.com/svn/trunk/webrtc@4679 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/video_engine/test/common/flags.cc b/video_engine/test/common/flags.cc
index 3a63ff7..ec6e8f6 100644
--- a/video_engine/test/common/flags.cc
+++ b/video_engine/test/common/flags.cc
@@ -10,59 +10,36 @@
 
 #include "webrtc/video_engine/test/common/flags.h"
 
-#include <assert.h>
-
 #include "gflags/gflags.h"
 
 namespace webrtc {
 namespace test {
 namespace flags {
 
-bool flags_are_init = false;
-
-void Init(int* argc, char ***argv) {
-  assert(!flags_are_init);
+void Init(int* argc, char*** argv) {
+  // AllowCommandLineParsing allows us to ignore flags passed on to us by
+  // Chromium build bots without having to explicitly disable them.
+  google::AllowCommandLineReparsing();
   google::ParseCommandLineFlags(argc, argv, true);
-
-//  stuff;
-  flags_are_init = true;
 }
 
 DEFINE_int32(width, 640, "Video width.");
-size_t Width() {
-  assert(flags_are_init);
-  return static_cast<size_t>(FLAGS_width);
-}
+size_t Width() { return static_cast<size_t>(FLAGS_width); }
 
 DEFINE_int32(height, 480, "Video height.");
-size_t Height() {
-  assert(flags_are_init);
-  return static_cast<size_t>(FLAGS_height);
-}
+size_t Height() { return static_cast<size_t>(FLAGS_height); }
 
 DEFINE_int32(fps, 30, "Frames per second.");
-int Fps() {
-  assert(flags_are_init);
-  return static_cast<int>(FLAGS_fps);
-}
+int Fps() { return static_cast<int>(FLAGS_fps); }
 
 DEFINE_int32(min_bitrate, 50, "Minimum video bitrate.");
-size_t MinBitrate() {
-  assert(flags_are_init);
-  return static_cast<size_t>(FLAGS_min_bitrate);
-}
+size_t MinBitrate() { return static_cast<size_t>(FLAGS_min_bitrate); }
 
 DEFINE_int32(start_bitrate, 300, "Video starting bitrate.");
-size_t StartBitrate() {
-  assert(flags_are_init);
-  return static_cast<size_t>(FLAGS_start_bitrate);
-}
+size_t StartBitrate() { return static_cast<size_t>(FLAGS_start_bitrate); }
 
 DEFINE_int32(max_bitrate, 800, "Maximum video bitrate.");
-size_t MaxBitrate() {
-  assert(flags_are_init);
-  return static_cast<size_t>(FLAGS_max_bitrate);
-}
+size_t MaxBitrate() { return static_cast<size_t>(FLAGS_max_bitrate); }
 }  // flags
 }  // test
 }  // webrtc