[mac] Implement {frame: 'none'} app window on Mac.

content/public/browser/web_contents_view.h

Index: content/public/browser/web_contents_view.h
diff --git a/content/public/browser/web_contents_view.h b/content/public/browser/web_contents_view.h
index 019e40164e95b909039f065d75ee3c2f50633b67..ff58fb3be8584a2614b2391182b4c185490bf57e 100644
--- a/content/public/browser/web_contents_view.h
+++ b/content/public/browser/web_contents_view.h
@@ -117,6 +117,10 @@ class CONTENT_EXPORT WebContentsView {
 
   // Get the bounds of the View, relative to the parent.
   virtual gfx::Rect GetViewBounds() const = 0;
+
+#if defined(OS_MACOSX)
+  virtual void SetMouseDownCanMoveWindow(bool can_move) = 0;

[jam, 2012/07/25 01:27:15]

the event tracking functions right above are only there for mac, and are empty
for other platforms. probably best to copy that pattern

[jeremya, 2012/07/25 03:15:59]

Hm, it seems misleading to have a method exist on platforms where it makes no
sense.

Since this is really just a hack to get the WebContentsView to respond in a
particular way to the -[NSView mouseDownCanMoveWindow] message, perhaps I should
just cast the NSView down to (id) and send it the message directly instead of
defining a new method on WebContentsView.

+#endif
 };
 
 }  // namespace content