base: Remove the string logging from CHECK().

media/formats/mp4/avc_unittest.cc

Index: media/formats/mp4/avc_unittest.cc
diff --git a/media/formats/mp4/avc_unittest.cc b/media/formats/mp4/avc_unittest.cc
index dd635c5371f7bf7ac0a9cb788f4ffa1762391029..6142683ed8a651486075093d6270e4fb80be99fb 100644
--- a/media/formats/mp4/avc_unittest.cc
+++ b/media/formats/mp4/avc_unittest.cc
@@ -63,7 +63,8 @@ static H264NALU::Type StringToNALUType(const std::string& name) {
   if (name == "R14")
     return H264NALU::kReserved14;
 
-  CHECK(false) << "Unexpected name: " << name;
+  // Unexpected name.
+  CHECK(false);
   return H264NALU::kUnspecified;
 }
 
@@ -105,7 +106,8 @@ static std::string NALUTypeToString(int type) {
     case H264NALU::kReserved18:
     case H264NALU::kCodedSliceAux:
     case H264NALU::kCodedSliceExtension:
-      CHECK(false) << "Unexpected type: " << type;
+      // Unexpected type.
+      CHECK(false);
       break;
   };