Use icudat*.dat file on Mac

content/content_shell.gypi

Index: content/content_shell.gypi
diff --git a/content/content_shell.gypi b/content/content_shell.gypi
index 0031964ae62445a8244159d608c885a1cf110431..797a5a444f25df60dc72ec3022fcd3b8f7ca2ed5 100644
--- a/content/content_shell.gypi
+++ b/content/content_shell.gypi
@@ -407,6 +407,13 @@
         'shell/app/app.icns',
         'shell/app/app-Info.plist',
       ],
+      'conditions': [
+        ['icu_use_data_file_flag', {
+          'mac_bundle_resources': [
+            '<(DEPTH)/third_party/icu/source/data/in/icudtl.dat',
+          ],
+        }],
+      ],
       # TODO(mark): Come up with a fancier way to do this.  It should only
       # be necessary to list app-Info.plist once, not the three times it is
       # listed here.