Remove DRT.gyp from chromium build. The target is moving to WebKit.gyp.

build/all.gyp

 # Copyright (c) 2009 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': 'All',
       'type': 'none',
       'xcode_create_dependents_test_runner': 1,
@@ skipping 22 matching lines @@
         '../third_party/libpng/libpng.gyp:*',
         '../third_party/libxml/libxml.gyp:*',
         '../third_party/libxslt/libxslt.gyp:*',
         '../third_party/lzma_sdk/lzma_sdk.gyp:*',
         '../third_party/modp_b64/modp_b64.gyp:*',
         '../third_party/npapi/npapi.gyp:*',
         '../third_party/ppapi/ppapi.gyp:*',
         '../third_party/ots/ots.gyp:*',
         '../third_party/sqlite/sqlite.gyp:*',
         '../third_party/WebKit/WebKit/chromium/WebKit.gyp:*',
-        '../third_party/WebKit/WebKitTools/DumpRenderTree/DumpRenderTree.gyp/DumpRenderTree.gyp:*',
         '../third_party/zlib/zlib.gyp:*',
         '../webkit/webkit.gyp:*',
         'util/build_util.gyp:*',
         'temp_gyp/googleurl.gyp:*',
       ],
       'conditions': [
         ['javascript_engine=="v8"', {
           'dependencies': [
             '../v8/tools/gyp/v8.gyp:*',
           ],
@@ skipping 261 matching lines @@
       ],  # targets
     }], # "chromeos==1"
   ], # conditions
 }
 
 # Local Variables:
 # tab-width:2
 # indent-tabs-mode:nil
 # End:
 # vim: set expandtab tabstop=2 shiftwidth=2: