AppShell support for Mac.

extensions/shell/browser/shell_browser_main_parts.cc

Index: extensions/shell/browser/shell_browser_main_parts.cc
diff --git a/extensions/shell/browser/shell_browser_main_parts.cc b/extensions/shell/browser/shell_browser_main_parts.cc
index 869da6e36eed702a9428c0a5a5d709fb17c47907..85935ad57b5a1af82262671bd01027246e196da5 100644
--- a/extensions/shell/browser/shell_browser_main_parts.cc
+++ b/extensions/shell/browser/shell_browser_main_parts.cc
@@ -51,6 +51,10 @@
 #include "extensions/shell/browser/shell_network_controller_chromeos.h"
 #endif
 
+#if defined(OS_MACOSX)
+#include "extensions/shell/browser/shell_browser_main_parts_mac.h"
+#endif
+
 #if !defined(DISABLE_NACL)
 #include "components/nacl/browser/nacl_browser.h"
 #include "components/nacl/browser/nacl_process_host.h"
@@ -90,6 +94,9 @@ ShellBrowserMainParts::~ShellBrowserMainParts() {
 
 void ShellBrowserMainParts::PreMainMessageLoopStart() {
   // TODO(jamescook): Initialize touch here?
+#if defined(OS_MACOSX)
+  MainPartsPreMainMessageLoopStartMac();
+#endif
 }
 
 void ShellBrowserMainParts::PostMainMessageLoopStart() {