Add shortcut to show avatar menu

chrome/browser/ui/cocoa/browser/avatar_button_controller.mm

Index: chrome/browser/ui/cocoa/browser/avatar_button_controller.mm
diff --git a/chrome/browser/ui/cocoa/browser/avatar_button_controller.mm b/chrome/browser/ui/cocoa/browser/avatar_button_controller.mm
index 42192f6139c1618e8617628b54d5beda8c3c8a60..f92c1c734ffe0cafbc7a7b665575cd1e12f83919 100644
--- a/chrome/browser/ui/cocoa/browser/avatar_button_controller.mm
+++ b/chrome/browser/ui/cocoa/browser/avatar_button_controller.mm
@@ -148,9 +148,20 @@ const CGFloat kMenuYOffsetAdjust = 1.0;
 
 - (IBAction)buttonClicked:(id)sender {
   DCHECK_EQ(self.buttonView, sender);
+  [self showAvatarBubble];
+}
+
+- (void)showAvatarBubble {
   if (menuController_)
     return;
 
+  NSWindowController* wc =
+      [browser_->window()->GetNativeHandle() windowController];
+  if ([wc isKindOfClass:[BrowserWindowController class]]) {
+    [static_cast<BrowserWindowController*>(wc)
+        lockBarVisibilityForOwner:self withAnimation:NO delay:NO];
+  }
+
   NSView* view = self.view;
   NSPoint point = NSMakePoint(NSMidX([view bounds]),
                               NSMaxY([view bounds]) - kMenuYOffsetAdjust);
@@ -169,6 +180,12 @@ const CGFloat kMenuYOffsetAdjust = 1.0;
 }
 
 - (void)bubbleWillClose:(NSNotification*)notif {
+  NSWindowController* wc =
+      [browser_->window()->GetNativeHandle() windowController];
+  if ([wc isKindOfClass:[BrowserWindowController class]]) {
+    [static_cast<BrowserWindowController*>(wc)
+        releaseBarVisibilityForOwner:self withAnimation:YES delay:NO];
+  }
   menuController_ = nil;
 }