Remove DCHECK_IMPLIES and CHECK_IMPLIES

ui/base/resource/data_pack.cc

 // Copyright (c) 2012 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 "ui/base/resource/data_pack.h"
 
 #include <errno.h>
 
 #include "base/files/file_util.h"
 #include "base/files/memory_mapped_file.h"
@@ skipping 222 matching lines @@
 
 #if DCHECK_IS_ON()
 void DataPack::CheckForDuplicateResources(
     const ScopedVector<ResourceHandle>& packs) {
   for (size_t i = 0; i < resource_count_ + 1; ++i) {
     const DataPackEntry* entry = reinterpret_cast<const DataPackEntry*>(
         mmap_->data() + kHeaderLength + (i * sizeof(DataPackEntry)));
     const uint16 resource_id = entry->resource_id;
     const float resource_scale = GetScaleForScaleFactor(scale_factor_);
     for (const ResourceHandle* handle : packs) {
-      DCHECK_IMPLIES(
-          GetScaleForScaleFactor(handle->GetScaleFactor()) == resource_scale,
-          !handle->HasResource(resource_id));
+      DCHECK((GetScaleForScaleFactor(handle->GetScaleFactor()) !=
+              resource_scale) ||
+             !handle->HasResource(resource_id));
     }
   }
 }
 #endif  // DCHECK_IS_ON()
 
 // static
 bool DataPack::WritePack(const base::FilePath& path,
                          const std::map<uint16, base::StringPiece>& resources,
                          TextEncodingType textEncodingType) {
   FILE* file = base::OpenFile(path, "wb");
@@ skipping 77 matching lines @@
       return false;
     }
   }
 
   base::CloseFile(file);
 
   return true;
 }
 
 }  // namespace ui