Enable streamlined-apps flag on Chrome for Mac.

chrome/browser/extensions/tab_helper.cc

Index: chrome/browser/extensions/tab_helper.cc
diff --git a/chrome/browser/extensions/tab_helper.cc b/chrome/browser/extensions/tab_helper.cc
index bb1a06d97376255edc7546e6cf84bd64c1040179..2bf133a099deebd48b93966db5e728407c062dc5 100644
--- a/chrome/browser/extensions/tab_helper.cc
+++ b/chrome/browser/extensions/tab_helper.cc
@@ -148,11 +148,7 @@ bool TabHelper::CanCreateApplicationShortcuts() const {
 }
 
 bool TabHelper::CanCreateBookmarkApp() const {
-#if defined(OS_MACOSX)
-  return false;
-#else
   return IsValidBookmarkAppUrl(web_contents()->GetURL());
-#endif
 }
 
 void TabHelper::AddScriptExecutionObserver(ScriptExecutionObserver* observer) {
@@ -295,7 +291,6 @@ void TabHelper::DidCloneToNewWebContents(WebContents* old_web_contents,
 }
 
 void TabHelper::OnDidGetWebApplicationInfo(const WebApplicationInfo& info) {
-#if !defined(OS_MACOSX)
   web_app_info_ = info;
 
   NavigationEntry* entry =
@@ -340,7 +335,6 @@ void TabHelper::OnDidGetWebApplicationInfo(const WebApplicationInfo& info) {
   // fails.
   if (pending_web_app_action_ != CREATE_HOSTED_APP)
     pending_web_app_action_ = NONE;
-#endif
 }
 
 void TabHelper::OnInlineWebstoreInstall(int install_id,