[DevTools] Use special resizing strategy instead of insets.

chrome/chrome.gyp

 # 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.
 {
   'variables': {
     'chromium_code': 1,
 
     # Define the common dependencies that contain all the actual
     # Chromium functionality.  This list gets pulled in below by
     # the link of the actual chrome (or chromium) executable on
@@ skipping 150 matching lines @@
             'browser/devtools/adb_client_socket.cc',
             'browser/devtools/adb_client_socket.h',
             'browser/devtools/adb_web_socket.cc',
             'browser/devtools/adb_web_socket.h',
             'browser/devtools/android_device.cc',
             'browser/devtools/android_device.h',
             'browser/devtools/browser_list_tabcontents_provider.cc',
             'browser/devtools/browser_list_tabcontents_provider.h',
             'browser/devtools/devtools_adb_bridge.cc',
             'browser/devtools/devtools_adb_bridge.h',
+            'browser/devtools/devtools_contents_resizing_strategy.cc',
+            'browser/devtools/devtools_contents_resizing_strategy.h',
             'browser/devtools/devtools_embedder_message_dispatcher.cc',
             'browser/devtools/devtools_embedder_message_dispatcher.h',
             'browser/devtools/devtools_file_helper.cc',
             'browser/devtools/devtools_file_helper.h',
             'browser/devtools/devtools_file_system_indexer.cc',
             'browser/devtools/devtools_file_system_indexer.h',
             'browser/devtools/devtools_protocol.cc',
             'browser/devtools/devtools_protocol.h',
             'browser/devtools/devtools_target_impl.cc',
             'browser/devtools/devtools_target_impl.h',
@@ skipping 921 matching lines @@
               'sources': [
                 'service/cloud_print/print_system_dummy.cc',
               ],
             }],
           ],
         },
       ],
     }],
   ],  # 'conditions'
 }