Refactor //ios:all target in preparation of upstreaming.

testing/buildbot/gn_isolate_map.pyl

 ## Copyright 2015 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.
 
 # gn_isolate_map.pyl - A mapping of Ninja build target names to GN labels and
 # test type classifications for the tests that are run on the bots.
 #
 # This mapping is used by MB so that we can uniformly refer to test binaries
 # by their Ninja target names in the recipes and not need to worry about how
 # they are referred to in GN or GYP specifically (the GYP target name is pretty
@@ skipping 500 matching lines @@
   },
   "install_static_unittests": {
     "label": "//chrome/install_static:install_static_unittests",
     "type": "console_test_launcher",
   },
   "interactive_ui_tests": {
     "label": "//chrome/test:interactive_ui_tests",
     "type": "windowed_test_launcher",
   },
   "ios_chrome_unittests": {
-    "label": "//ios/chrome:ios_chrome_unittests",
+    "label": "//ios/chrome/test:ios_chrome_unittests",
     "type": "raw",
     "args": [],
   },
   "ios_net_unittests": {
     "label": "//ios/net:ios_net_unittests",
     "type": "raw",
     "args": [],
   },
   "ios_web_inttests": {
     "label": "//ios/web:ios_web_inttests",
@@ skipping 465 matching lines @@
   },
   "wm_unittests": {
     "label": "//ui/wm:wm_unittests",
     "type": "windowed_test_launcher",
   },
   "wtf_unittests": {
     "label": "//third_party/WebKit/Source/wtf:wtf_unittests",
     "type": "console_test_launcher",
   },
 }