Make most code on mac compile with enable_web_intents=0

chrome/browser/extensions/platform_app_launcher.cc

 // 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.
 
 #include "chrome/browser/extensions/platform_app_launcher.h"
 
 #include "base/command_line.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/logging.h"
@@ skipping 156 matching lines @@
       LOG(WARNING) << "Extension does not provide a valid file handler for "
                    << file_path_.value();
       LaunchWithNoLaunchData();
       return;
     }
     found_service = !!handler;
 
     // TODO(benwells): remove this once we no longer support the "intents"
     // syntax in platform app manifests.
     if (!found_service) {
+#if defined(ENABLE_WEB_INTENTS)
       std::vector<webkit_glue::WebIntentServiceData> services =
           extensions::WebIntentsInfo::GetIntentsServices(extension_);
       for (size_t i = 0; i < services.size(); i++) {
         std::string service_type_ascii = UTF16ToASCII(services[i].type);
         if (services[i].action == ASCIIToUTF16(web_intents::kActionView) &&
             net::MatchesMimeType(service_type_ascii, mime_type)) {
           found_service = true;
           break;
         }
       }
+#endif
     }
 
     // If this app doesn't have an intent that supports the file, launch with
     // no launch data.
     if (!found_service) {
       LOG(WARNING) << "Extension does not provide a valid file handler for "
                    << file_path_.value();
       LaunchWithNoLaunchData();
       return;
     }
@@ skipping 214 matching lines @@
     const Extension* extension,
     content::WebIntentsDispatcher* intents_dispatcher,
     content::WebContents* source) {
   scoped_refptr<PlatformAppWebIntentLauncher> launcher =
       new PlatformAppWebIntentLauncher(
           profile, extension, intents_dispatcher, source);
   launcher->Launch();
 }
 
 }  // namespace extensions