Enable webrtc and most of blink and content in the Mac GN build.

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 255 matching lines @@
       "//device/usb",
       "//third_party/pdfium/samples",
     ]
   }
 
   # 
   # TODO(GYP): Make everything below this work in the GN build.
   #
 
   if (is_mac) {
-    # TODO(dpranke): These need a webrtc fix in order to build.
-    deps -= [
-      "//jingle:notifier",
-      "//third_party/libjingle",
-      "//third_party/webrtc",
-    ]
-
-    # TODO(dpranke): These depend on Blink and need Blink fixes to build.
-    deps -= [
-      "//cc/blink",
-      "//content",
-      "//content/test:test_support",
-      "//media/blink",
-      "//pdf",
-      "//ppapi:ppapi_c",
-      "//third_party/WebKit/public:all_blink",
-      "//ui/app_list",
-    ]
-
     # TODO(dpranke): These are as-yet untriaged but need at least the above.
     deps -= [
       "//apps",
       "//ash",
       "//chrome/browser",
       "//chrome/browser/devtools",
       "//chrome/common",
       "//chrome/plugin",
       "//chrome/renderer",
       "//chrome/test",
       "//chrome/utility",
       "//components:all_components",
       "//content/shell:content_shell",
       "//extensions/browser",
       "//extensions/common",
       "//extensions/common/api",
       "//extensions/renderer",
       "//remoting/client/plugin",
       "//third_party/usrsctp",
+      "//ui/app_list",
       "//ui/aura",
       "//ui/keyboard",
       "//ui/views",
       "//ui/views/controls/webview",
       "//ui/web_dialogs",
     ]
   }
 
   if (is_win) {
     deps -= [
@@ skipping 52 matching lines @@
       "//ui/native_theme",
       "//ui/snapshot",
       "//ui/surface",
       "//ui/views",
       "//ui/views/controls/webview",
       "//ui/web_dialogs",
       "//ui/wm",
     ]
   }
 }