[Mac] Re-enable pinned tabs; add support for mini-tabs and phantom tabs.

chrome/browser/cocoa/tab_strip_controller.h

Index: chrome/browser/cocoa/tab_strip_controller.h
diff --git a/chrome/browser/cocoa/tab_strip_controller.h b/chrome/browser/cocoa/tab_strip_controller.h
index b52f6c4289bc34e70185f45530bdbeafaf848f0e..005b9c7e2cecce406d63a9d7062ba0545375bc84 100644
--- a/chrome/browser/cocoa/tab_strip_controller.h
+++ b/chrome/browser/cocoa/tab_strip_controller.h
@@ -136,8 +136,13 @@ class ToolbarModel;
 // window when we don't have access to the TabContents as part of our strip.
 // |frame| is in the coordinate system of the tab strip view and represents
 // where the user dropped the new tab so it can be animated into its correct
-// location when the tab is added to the model.
-- (void)dropTabContents:(TabContents*)contents withFrame:(NSRect)frame;
+// location when the tab is added to the model. If the tab was pinned in its
+// previous window, setting |pinned| to YES will propagate that state to the
+// new window. Mini-tabs are either app or pinned tabs; the app state is stored
+// by the |contents|, but the |pinned| state is the caller's responsibility.
+- (void)dropTabContents:(TabContents*)contents
+              withFrame:(NSRect)frame
+            asPinnedTab:(BOOL)pinned;
 
 // Returns the index of the subview |view|. Returns -1 if not present. Takes
 // closing tabs into account such that this index will correctly match the tab