Change crash keys to be registered with a maximum length instead of number of chunks.

chrome/chrome_common.gypi

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'common',
       'type': 'static_library',
       'variables': {
@@ skipping 414 matching lines @@
             ['exclude', '^common/chrome_version_info_posix.cc'],
             ['exclude', '^common/service_'],
           ],
           'dependencies!': [
             '<(DEPTH)/chrome/app/policy/cloud_policy_codegen.gyp:policy',
           ],
         }],
         ['OS=="win"', {
           'include_dirs': [
             '<(DEPTH)/third_party/wtl/include',
-          ]
+          ],
+          'sources!': [
+            'common/crash_keys.cc',
+            'common/crash_keys.h',
+          ],
         }],
         ['toolkit_uses_gtk == 1', {
           'dependencies': [
             '../build/linux/system.gyp:gtk',
           ],
           'export_dependent_settings': [
             '../third_party/sqlite/sqlite.gyp:sqlite',
           ],
           'link_settings': {
             'libraries': [
@@ skipping 247 matching lines @@
         'common/metrics/proto/user_action_event.proto',
       ],
       'variables': {
         'proto_in_dir': 'common/metrics/proto',
         'proto_out_dir': 'chrome/common/metrics/proto',
       },
       'includes': [ '../build/protoc.gypi' ],
     },
   ],
 }