Update //third_party/protobuf to version 3.

build/common.gypi

 # Copyright (c) 2012 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.
 
 # IMPORTANT:
 # Please don't directly include this file if you are building via gyp_chromium,
 # since gyp_chromium is automatically forcing its inclusion.
 {
   # Variables expected to be overriden on the GYP command line (-D) or by
   # ~/.gyp/include.gypi.
@@ skipping 2845 matching lines @@
         'defines': ['FIELDTRIAL_TESTING_ENABLED'],
       }],  # fieldtrial_testing_like_official_build==0 and branding!="Chrome"
       ['OS=="win"', {
         'defines': ['NO_TCMALLOC'],
         'conditions': [
           ['win_use_allocator_shim==1', {
             'defines': ['ALLOCATOR_SHIM'],
           }],
         ],
       }],
-      ['asan==1', {
-        'defines': [
-          'ADDRESS_SANITIZER',
-          'MEMORY_TOOL_REPLACES_ALLOCATOR',
-          'MEMORY_SANITIZER_INITIAL_SIZE',
-        ],
-      }],
       ['syzyasan==1', {
         # SyzyAsan needs /PROFILE turned on to produce appropriate pdbs.
         'msvs_settings': {
           'VCLinkerTool': {
             'Profile': 'true',
           },
         },
         'defines': [
             'SYZYASAN',
             'MEMORY_TOOL_REPLACES_ALLOCATOR',
@@ skipping 214 matching lines @@
       }],
       ['<(use_nss_certs)==1 and >(nacl_untrusted_build)==0', {
         'defines': ['USE_NSS_CERTS=1'],
       }],
       ['<(use_nss_verifier)==1 and >(nacl_untrusted_build)==0', {
         'defines': ['USE_NSS_VERIFIER=1'],
       }],
       ['<(chromeos)==1 and >(nacl_untrusted_build)==0', {
         'defines': ['OS_CHROMEOS=1'],
       }],
+      ['<(asan)==1 and >(nacl_untrusted_build)==0', {
+        'defines': [
+          'ADDRESS_SANITIZER',
+          'MEMORY_TOOL_REPLACES_ALLOCATOR',
+          'MEMORY_SANITIZER_INITIAL_SIZE',
+        ],
+      }],
       ['enable_wexit_time_destructors==1 and OS!="win"', {
         # TODO: Enable on Windows too, http://crbug.com/404525
         'variables': { 'clang_warning_flags': ['-Wexit-time-destructors']},
       }],
       ['chromium_code==0', {
         'variables': {
           'clang_warning_flags': [
             # Lots of third-party libraries have unused variables. Instead of
             # suppressing them individually, we just blanket suppress them here.
             '-Wno-unused-variable',
@@ skipping 3266 matching lines @@
     # settings in target dicts.  SYMROOT is a special case, because many other
     # Xcode variables depend on it, including variables such as
     # PROJECT_DERIVED_FILE_DIR.  When a source group corresponding to something
     # like PROJECT_DERIVED_FILE_DIR is added to a project, in order for the
     # files to appear (when present) in the UI as actual files and not red
     # red "missing file" proxies, the correct path to PROJECT_DERIVED_FILE_DIR,
     # and therefore SYMROOT, needs to be set at the project level.
     'SYMROOT': '<(DEPTH)/xcodebuild',
   },
 }