base: Remove the string logging from CHECK().

media/formats/mp4/track_run_iterator_unittest.cc

Index: media/formats/mp4/track_run_iterator_unittest.cc
diff --git a/media/formats/mp4/track_run_iterator_unittest.cc b/media/formats/mp4/track_run_iterator_unittest.cc
index 7c2043bf3411807e8bf64098217869259ec607f1..d2ddd869f6de968d3f35a7d21038708673fa79ec 100644
--- a/media/formats/mp4/track_run_iterator_unittest.cc
+++ b/media/formats/mp4/track_run_iterator_unittest.cc
@@ -209,8 +209,8 @@ class TrackRunIteratorTest : public testing::Test {
         sample_depends_on = kSampleDependsOnReserved;
         break;
       default:
-        CHECK(false) << "Invalid sample dependency character '"
-                     << str[0] << "'";
+        // Invalid sample dependency character.
+        CHECK(false);
         break;
     }
 
@@ -222,8 +222,8 @@ class TrackRunIteratorTest : public testing::Test {
         is_non_sync_sample = true;
         break;
       default:
-        CHECK(false) << "Invalid sync sample character '"
-                     << str[1] << "'";
+        // Invalid sync sample character.
+        CHECK(false);
         break;
     }
     uint32_t flags = static_cast<uint32_t>(sample_depends_on) << 24;