Change panels to be able to turn off autoresize.

chrome/browser/ui/panels/panel_manager.h

Index: chrome/browser/ui/panels/panel_manager.h
diff --git a/chrome/browser/ui/panels/panel_manager.h b/chrome/browser/ui/panels/panel_manager.h
index d02fe76d8b9d30282cdf61eed5ffd7ffea9a1d8a..73202a69d409c64181d701e48e798b71e0a2f2e3 100644
--- a/chrome/browser/ui/panels/panel_manager.h
+++ b/chrome/browser/ui/panels/panel_manager.h
@@ -54,8 +54,8 @@ class PanelManager : public AutoHidingDesktopBar::Observer {
 
   // Invoked when the preferred window size of the given panel might need to
   // get changed.
-  void OnPreferredWindowSizeChanged(
-      Panel* panel, const gfx::Size& preferred_window_size);
+  void OnWindowAutoResized(Panel* panel,
+                           const gfx::Size& preferred_window_size);
 
   // Resizes the panel. Explicitly setting the panel size is not allowed
   // for panels that are auto-sized.
@@ -114,6 +114,11 @@ class PanelManager : public AutoHidingDesktopBar::Observer {
       return interval;
   }
 
+
+  bool auto_sizing_enabled() const {
+    return auto_sizing_enabled_;
+  }
+
 #ifdef UNIT_TEST
   static void shorten_time_intervals_for_testing() {
     shorten_time_intervals_ = true;