Change panels to be able to turn off autoresize.

chrome/browser/ui/panels/docked_panel_strip.cc

Index: chrome/browser/ui/panels/docked_panel_strip.cc
diff --git a/chrome/browser/ui/panels/docked_panel_strip.cc b/chrome/browser/ui/panels/docked_panel_strip.cc
index 4b2099a88a8d63025090275775bbf7f3faa1e9f0..9f06b43aa36a0586697016b433a58f47aad614cf 100644
--- a/chrome/browser/ui/panels/docked_panel_strip.cc
+++ b/chrome/browser/ui/panels/docked_panel_strip.cc
@@ -471,6 +471,9 @@ void DockedPanelStrip::ResizePanelWindow(
   if (new_size != panel->restored_size())
     panel->set_restored_size(new_size);
 
+  // Resizing a panel will make it not auto-resizable.
+  panel->SetAutoResizable(false, new_size);

[jennb, 2012/02/29 00:11:50]

This works for now. We'll have to figure out how to refactor this entire method
to make it work for detached panels. (FYI)

+
   gfx::Rect bounds = panel->GetBounds();
   int delta_x = bounds.width() - new_width;