Experiment with dislodging the Extension Shelf and having it only appear on t...

chrome/browser/cocoa/browser_window_cocoa.mm

Index: chrome/browser/cocoa/browser_window_cocoa.mm
===================================================================
--- chrome/browser/cocoa/browser_window_cocoa.mm	(revision 24842)
+++ chrome/browser/cocoa/browser_window_cocoa.mm	(working copy)
@@ -89,6 +89,10 @@
   // sort on Mac.
 }
 
+void BrowserWindowCocoa::SelectedTabExtensionShelfSizeChanged() {
+  NOTIMPLEMENTED();
+}
+
 void BrowserWindowCocoa::UpdateTitleBar() {
   NSString* newTitle =
       base::SysUTF16ToNSString(browser_->GetWindowTitleForCurrentTab());
@@ -183,6 +187,10 @@
   bookmark_utils::ToggleWhenVisible(browser_->profile());
 }
 
+void BrowserWindowCocoa::ToggleExtensionShelf() {
+  NOTIMPLEMENTED();
+}
+
 void BrowserWindowCocoa::AddFindBar(
     FindBarCocoaController* find_bar_cocoa_controller) {
   return [controller_ addFindBar:find_bar_cocoa_controller];