build: On Android, disable LTO for specific targets only when targeting GCC.

build/android/disable_lto.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 disable LTO on a target.
+# This file is meant to be included to disable GCC LTO on a target.
+
+# TODO(pcc): Replace references in external repositories with
+# disable_gcc_lto.gypi and remove this file.

[Fabrice (no longer in Chrome), 2015/08/20 23:07:46]

I believe there are no references from external repositories to this file. Could
you try removing it and see if the tryjobs are happy with it?

[pcc1, 2015/08/20 23:11:04]

I can see a reference in a Google internal repository (details sent separately).
I don't know what the consequences of breaking this reference would be.

[pcc, 2015/08/20 23:21:39]

Done.

 
 {
   'target_conditions': [
     ['_toolset=="target"', {
       'conditions': [
-        ['OS=="android" and (use_lto==1 or use_lto_o2==1)', {
+        ['OS=="android" and clang==0 and (use_lto==1 or use_lto_o2==1)', {
           'cflags!': [
             '-flto',
             '-ffat-lto-objects',
           ],
         }],
       ],
     }],
   ],
 }