GN: Add mojo_shell_tests, get more things working on android

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 144 matching lines @@
     # YASM is x86/x64 only.
     deps += [ "//third_party/yasm($host_toolchain)" ]
   }
 
   if (is_android) {
     deps += [
       "//ui/android:ui_java"
     ]
 
     deps -= [
-      "//cc",
       "//chrome/browser",  # Blocked on content.
       "//chrome/browser/devtools",  # Blocked on content.
       "//chrome/browser/ui",  # Blocked on content.
       "//chrome/browser/ui/views",  # Blocked on content.
       "//chrome/common",  # Blocked on content.
       "//chrome/plugin",  # Blocked on content.
       "//chrome/renderer",  # Blocked on content.
       "//chrome/service",  # Blocked on content.
       "//chrome/utility",  # Blocked on content.
       "//content",
       "//content/shell:content_shell",  # Blocked on content.
       "//content/test:test_support",  # Blocked on content.
       "//extensions/browser",
       "//extensions/common",
       "//extensions/common/api",
       "//extensions/renderer",
-      "//mojo", # Blocked on GN toolchain support: https://codereview.chromium.org/428633006/
       "//pdf",  # Not compiled on Android in GYP yet, either.
       "//ppapi:ppapi_c",
       "//sandbox",
       "//third_party/libusb",
       "//ui/keyboard",  # Blocked on content.
 
+      # Blocked on neon stuff in vp8
+      "//third_party/WebKit/public:all_blink",
+
       # Seems to not be compiled on Android. Otherwise it will need a config.h.
       "//third_party/libxslt",
 
       # Not relevant to Android.
       "//ash",
       "//tools/gn",
       "//ui/aura",
       "//ui/display",
       "//ui/views",
       "//ui/views/controls/webview",
 
       # Fails on Android for unknown reasons.
       "//third_party/flac",
       "//breakpad:symupload",
 
-      # TODO(brettw) make Blink work on Android.
-      "//third_party/WebKit/public:all_blink",
-
       # Not tested on Android yet:
       "//google_apis/gcm",
       "//third_party/cld_2",
       "//third_party/libaddressinput",
       "//third_party/ffmpeg",
       "//ui/app_list",
       "//ui/web_dialogs",
       "//ui/wm",
       "//webkit/browser:storage",
       "//webkit/child",
     ]
   }
 
   if (use_ozone) {
     deps += [
       "//ui/ozone",
       "//ui/ozone/demo",
     ]
   }
 }