Add GN targets for codesighs and telemetry

BUILD.gn

 # Copyright (c) 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.
 
 # This is the root build file for GN. GN will start processing by loading this
 # file, and recursively load all dependencies until all dependencies are either
 # resolved or known not to exist (which will cause the build to fail). So if
 # you add a new build file, there must be some path of dependencies from this
 # file to your new one or GN won't know about it.
 
@@ skipping 36 matching lines @@
     "//content/test:test_support",
     "//crypto",
     "//device/battery",
     "//device/bluetooth",
     "//device/nfc",
     "//device/vibration",
     "//extensions/browser",
     "//extensions/common",
     "//extensions/common/api",
     "//extensions/renderer",
+    "//extensions/shell:app_shell_unittests",
     "//gin",
     "//gpu",
     "//google_apis",
     "//google_apis/gcm",
     "//ipc",
     "//ipc/mojo",
     "//jingle:notifier",
     "//media",
     "//media/blink",
     "//media/cast",
     "//media/mojo",
     "//mojo",
     "//net",
     "//pdf",
     "//ppapi/examples",
     "//printing",
     "//remoting/client/plugin",
     "//sandbox",
     "//sdch",
     "//skia",
     "//storage/browser",
     "//sql",
     "//sync",
     "//third_party/WebKit/public:all_blink",
     "//third_party/angle:translator",
     "//third_party/brotli",
     "//third_party/cacheinvalidation",
     "//third_party/cld",
     "//third_party/cld_2",
+    "//third_party/codesighs",
     "//third_party/ffmpeg",
     "//third_party/flac",
     "//third_party/harfbuzz-ng",
     "//third_party/hunspell",
     "//third_party/iccjpeg",
     "//third_party/icu",
     "//third_party/leveldatabase",
     "//third_party/libphonenumber",
     "//third_party/libjingle",
     "//third_party/libpng",
@@ skipping 15 matching lines @@
     "//third_party/smhasher:pmurhash",
     "//third_party/snappy",
     "//third_party/speex",
     "//third_party/usrsctp",
     "//third_party/widevine/cdm:version_h",
     "//third_party/webrtc",
     "//third_party/zlib",
     "//third_party:jpeg",
     "//tools/gn",
     "//tools/imagediff($host_toolchain)",
+    "//tools/telemetry:bitmaptools",
     "//ui/accessibility",
     "//ui/app_list",
     "//ui/aura",
     "//ui/base",
     "//ui/display",
     "//ui/events",
     "//ui/gfx",
     "//ui/gl",
     "//ui/keyboard",
     "//ui/native_theme",
@@ skipping 164 matching lines @@
       "//ui/views",
       "//ui/views/controls/webview",
       "//ui/web_dialogs",
     ]
   }
 
   if (is_mac || is_ios) {
     deps -= [ "//ui/touch_selection" ]
   }
 }