Update from https://crrev.com/320343

base/trace_event/process_memory_maps_dump_provider.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/trace_event/process_memory_maps_dump_provider.h"
 
 #include <cctype>
 #include <fstream>
 
 #include "base/logging.h"
@@ skipping 29 matching lines @@
   if (end_addr > region->start_address) {
     region->size_in_bytes = end_addr - region->start_address;
   } else {
     // This is not just paranoia, it can actually happen (See crbug.com/461237).
     region->size_in_bytes = 0;
     res = false;
   }
 
   region->protection_flags = 0;
   *smaps >> protection_flags;
-  CHECK(4UL == protection_flags.size());
+  CHECK_EQ(4UL, protection_flags.size());
   if (protection_flags[0] == 'r') {
     region->protection_flags |=
         ProcessMemoryMaps::VMRegion::kProtectionFlagsRead;
   }
   if (protection_flags[1] == 'w') {
     region->protection_flags |=
         ProcessMemoryMaps::VMRegion::kProtectionFlagsWrite;
   }
   if (protection_flags[2] == 'x') {
     region->protection_flags |=
@@ skipping 117 matching lines @@
 
   return false;
 }
 
 const char* ProcessMemoryMapsDumpProvider::GetFriendlyName() const {
   return kDumperFriendlyName;
 }
 
 }  // namespace trace_event
 }  // namespace base