Set component=static_library for ASan builds on Mac.

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 1187 matching lines @@
       }],
 
       ['asan==1', {
         'clang%': 1,
         # Do not use Chrome plugins for Clang. The Clang version in
         # third_party/asan may be different from the default one.
         # TODO(glider): this isn't true anymore, need to check if we can use the
         # plugins now.
         'clang_use_chrome_plugins%': 0,
       }],
-
+      ['asan==1 and OS=="mac"', {
+        # See http://crbug.com/145503.
+        'component': "static_library",
+      }],
       ['tsan==1', {
         'clang%': 1,
       }],
 
       # On valgrind bots, override the optimizer settings so we don't inline too
       # much and make the stacks harder to figure out.
       #
       # TODO(rnk): Kill off variables that no one else uses and just implement
       # them under a build_for_tool== condition.
       ['build_for_tool=="memcheck" or build_for_tool=="tsan"', {
@@ skipping 2197 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',
   },
 }