Make TabContents ctor private; poke hole for existing callers.

chrome/browser/ui/cocoa/infobars/infobar_controller_unittest.mm

Index: chrome/browser/ui/cocoa/infobars/infobar_controller_unittest.mm
diff --git a/chrome/browser/ui/cocoa/infobars/infobar_controller_unittest.mm b/chrome/browser/ui/cocoa/infobars/infobar_controller_unittest.mm
index c95bee86a6355970a362957719222ace48db9e67..59b8b524d985b1b5c1b5a8d0e9bffb19c83b196a 100644
--- a/chrome/browser/ui/cocoa/infobars/infobar_controller_unittest.mm
+++ b/chrome/browser/ui/cocoa/infobars/infobar_controller_unittest.mm
@@ -23,6 +23,14 @@
 
 using content::WebContents;
 
+// TODO(avi): Kill this when TabContents goes away.
+class InfoBarControllerContentsCreator {
+ public:
+  static TabContents* CreateTabContents(content::WebContents* contents) {
+    return TabContents::Factory::CreateTabContents(contents);
+  }
+};
+
 @interface InfoBarController (ExposedForTesting)
 - (NSString*)labelString;
 - (NSRect)labelFrame;
@@ -100,8 +108,8 @@ class LinkInfoBarControllerTest : public CocoaProfileTest,
  public:
   virtual void SetUp() {
     CocoaProfileTest::SetUp();
-    tab_contents_.reset(new TabContents(WebContents::Create(
-        profile(), NULL, MSG_ROUTING_NONE, NULL)));
+    tab_contents_.reset(InfoBarControllerContentsCreator::CreateTabContents(
+        WebContents::Create(profile(), NULL, MSG_ROUTING_NONE, NULL)));
     tab_contents_->infobar_tab_helper()->set_infobars_enabled(false);
 
     delegate_ = new MockLinkInfoBarDelegate(this);
@@ -144,8 +152,8 @@ class ConfirmInfoBarControllerTest : public CocoaProfileTest,
  public:
   virtual void SetUp() {
     CocoaProfileTest::SetUp();
-    tab_contents_.reset(new TabContents(WebContents::Create(
-        profile(), NULL, MSG_ROUTING_NONE, NULL)));
+    tab_contents_.reset(InfoBarControllerContentsCreator::CreateTabContents(
+        WebContents::Create(profile(), NULL, MSG_ROUTING_NONE, NULL)));
     tab_contents_->infobar_tab_helper()->set_infobars_enabled(false);
 
     delegate_ = new MockConfirmInfoBarDelegate(this);