Disable Kasko for SyzyASAN-instrumented builds.

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 1937 matching lines @@
           ['component=="shared_library"', {
             'win_use_allocator_shim%': 0,
           },{
             # Turn on multiple dll by default on Windows when in static_library.
             'chrome_multiple_dll%': 1,
           }],
           ['asan==1 or syzyasan==1', {
             'win_use_allocator_shim%': 0,
           }],
           ['syzyasan==1', {
-            'kasko%': 1,
+            # Uncomment the following line to enable Kasko for
+            # SyzyASAN-instrumented releases.
+            # 'kasko%': 1,
           }],
           ['component=="shared_library" and "<(GENERATOR)"=="ninja"', {
             # Only enabled by default for ninja because it's buggy in VS.
             # Not enabled for component=static_library because some targets
             # are too large and the toolchain fails due to the size of the
             # .obj files.
             'incremental_chrome_dll%': 1,
           }],
           # Don't do incremental linking for large modules on 32-bit or when
           # component=static_library as the toolchain fails due to the size of
@@ skipping 4063 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',
   },
 }