Add support for Android aidl and support for gyp's java_in_dir

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 155 matching lines @@
 
   if (is_android) {
     deps += [
       "//ui/android:ui_java",
       "//third_party/guava:guava_javalib",
       "//third_party/android_tools:android_gcm_java",
       "//third_party/android_tools:uiautomator_java",
       "//third_party/android_tools:android_support_v13_java",
       "//third_party/android_tools:android_support_v7_appcompat_java",
       "//third_party/android_tools:android_support_v7_mediarouter_java",
+      "//third_party/eyesfree:eyesfree_java",
     ]
 
     deps -= [
       "//apps",  # Needs testing.
       "//cc/blink", # Blocked on blink
       "//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.
@@ skipping 54 matching lines @@
     ]
   }
 
   # Non-mobile builds.
   if (!is_android && !is_ios) {
     deps += [
       "//device/usb",
     ]
   }
 }