Update from https://crrev.com/314320

build/android/increase_size_for_speed.gypi

 # Copyright (c) 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.
 
 # This file is meant to be included to optimize a target for speed
 # rather than for size on Android.
 # This is used in some carefully tailored targets and is not meant
 # to be included everywhere. Before adding the template to another target,
 # please ask in chromium-dev@. See crbug.com/411909
 
 {
   'configurations': {
     'Release': {
       'target_conditions': [
         ['_toolset=="target"', {
           'conditions': [
             ['OS=="android"', {
               'cflags!': ['-Os'],
               'cflags': ['-O2'],
             }],
             # Do not merge -Os and -O2 in LTO.
             # LTO merges all optimization options at link-time. -O2 takes
             # precedence over -Os. Avoid using LTO simultaneously
             # on -Os and -O2 parts for that reason.
-            ['use_lto==1', {
+            ['OS=="android" and use_lto==1', {
               'cflags!': [
                 '-flto',
                 '-ffat-lto-objects',
               ],
             }],
-            ['use_lto_o2==1', {
+            ['OS=="android" and use_lto_o2==1', {
               'cflags': [
                 '-flto',
                 '-ffat-lto-objects',
               ],
             }],
           ],
         }],
       ],
     },
   },
 }