Reduce APK size by disabling WebRTC.

remoting/remoting_android.gypi

 # 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.
 
 {
   'conditions': [
     ['OS=="android"', {
       'variables': {
         # These hooks allow official builds to modify the remoting_apk target:
         # Official build of remoting_apk pulls in extra code.
@@ skipping 41 matching lines @@
             'client/jni/jni_client.cc',
             'client/jni/jni_client.h',
             'client/jni/jni_frame_consumer.cc',
             'client/jni/jni_frame_consumer.h',
             'client/jni/jni_touch_event_data.cc',
             'client/jni/jni_touch_event_data.h',
             'client/jni/remoting_jni_onload.cc',
             'client/jni/remoting_jni_registrar.cc',
             'client/jni/remoting_jni_registrar.h',
           ],
+          'conditions': [
+            ['buildtype!="Official"', {
+              'defines': [
+                'ENABLE_WEBRTC_REMOTING_CLIENT'
+              ]
+            }]
+          ],
         },  # end of target 'remoting_client_jni'
         {
           'target_name': 'remoting_android_resources',
           'type': 'none',
           'copies': [
             {
               'destination': '<(SHARED_INTERMEDIATE_DIR)/remoting/android/res/raw',
               'files': [
                 '<(SHARED_INTERMEDIATE_DIR)/remoting/credits.html',
                 'webapp/base/html/credits_css.css',
@@ skipping 164 matching lines @@
           ],
           'variables': {
             'test_suite_name': 'remoting_unittests',
           },
           'includes': [ '../build/apk_test.gypi' ],
         },  # end of target 'remoting_unittests_apk'
       ],  # end of 'targets'
     }],  # 'OS=="android"
   ],  # end of 'conditions'
 }