GN: Add -Wl,-z defs on linux and fix errors

device/vibration/android/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/android/config.gni")
 import("//build/config/android/rules.gni")
 
 assert(is_android)
 
 source_set("android") {
   sources = [
     "vibration_jni_registrar.cc",
     "vibration_jni_registrar.h",
   ]
 
+  defines = [ "DEVICE_VIBRATION_IMPLEMENTATION" ]

[Nico, 2015/01/16 01:57:50]

For a source_set? Shouldn't this be where the component for this is?

+
   deps = [
     # vibration_jni_registrar.cc includes a header from device/vibration
     # that includes a mojo-generated header file.  Make sure the header
     # is generated before vibration_jni_registrar.cc is compiled.
     "//device/vibration:mojo_bindings",
   ]
 }
 
 generate_jni("vibration_jni_headers") {
   sources = [
     "java/src/org/chromium/device/vibration/VibrationProvider.java",
   ]
   jni_package = "vibration"
 }