Update //base to chromium 9659b08ea5a34f889dc4166217f438095ddc10d2

base/files/memory_mapped_file.cc

 // Copyright 2013 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/files/memory_mapped_file.h"
 
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/sys_info.h"
 
 namespace base {
 
-const MemoryMappedFile::Region MemoryMappedFile::Region::kWholeFile(
-    base::LINKER_INITIALIZED);
-
-MemoryMappedFile::Region::Region(base::LinkerInitialized) : offset(0), size(0) {
-}
-
-MemoryMappedFile::Region::Region() : offset(-1), size(-1) {
-}
-
-MemoryMappedFile::Region::Region(int64 offset, int64 size)
-    : offset(offset), size(size) {
-}
+const MemoryMappedFile::Region MemoryMappedFile::Region::kWholeFile = {0, 0};
 
 bool MemoryMappedFile::Region::operator==(
     const MemoryMappedFile::Region& other) const {
   return other.offset == offset && other.size == size;
 }
 
 bool MemoryMappedFile::Region::operator!=(
     const MemoryMappedFile::Region& other) const {
   return other.offset != offset || other.size != size;
 }
@@ skipping 58 matching lines @@
   // Sadly, on Windows, the mmap alignment is not just equal to the page size.
   const int64 mask = static_cast<int64>(SysInfo::VMAllocationGranularity()) - 1;
   DCHECK_LT(mask, std::numeric_limits<int32>::max());
   *offset = start & mask;
   *aligned_start = start & ~mask;
   *aligned_size = (size + *offset + mask) & ~mask;
 }
 #endif
 
 }  // namespace base