chrome_exe_main: name os-specific files according to naming pattern

chrome/chrome.gyp

 # Copyright (c) 2010 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.
 {
   'variables': {
     'chromium_code': 1,
 
     'variables': {
       'version_py_path': 'tools/build/version.py',
       'version_path': 'VERSION',
@@ skipping 1198 matching lines @@
           'target_name': 'helper_app',
           'type': 'executable',
           'product_name': '<(mac_product_name) Helper',
           'mac_bundle': 1,
           'dependencies': [
             'chrome_dll',
             'interpose_dependency_shim',
             'infoplist_strings_tool',
           ],
           'sources': [
-            # chrome_exe_main.mm's main() is the entry point for the "chrome"
-            # (browser app) target.  All it does is jump to chrome_dll's
-            # ChromeMain.  This is appropriate for helper processes too,
-            # because the logic to discriminate between process types at run
-            # time is actually directed by the --type command line argument
-            # processed by ChromeMain.  Sharing chrome_exe_main.mm with the
+            # chrome_exe_main_mac.mm's main() is the entry point for
+            # the "chrome" (browser app) target.  All it does is jump
+            # to chrome_dll's ChromeMain.  This is appropriate for
+            # helper processes too, because the logic to discriminate
+            # between process types at run time is actually directed
+            # by the --type command line argument processed by
+            # ChromeMain.  Sharing chrome_exe_main_mac.mm with the
             # browser app will suffice for now.
-            'app/chrome_exe_main.mm',
+            'app/chrome_exe_main_mac.mm',
             'app/helper-Info.plist',
           ],
           # TODO(mark): Come up with a fancier way to do this.  It should only
           # be necessary to list helper-Info.plist once, not the three times it
           # is listed here.
           'mac_bundle_resources!': [
             'app/helper-Info.plist',
           ],
           # TODO(mark): For now, don't put any resources into this app.  Its
           # resources directory will be a symbolic link to the browser app's
@@ skipping 774 matching lines @@
       }],  # targets
     }],  # OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="solaris"
   ],  # 'conditions'
 }
 
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