macOS: Setting focus to the first profile in profile switcher

chrome/browser/ui/cocoa/profiles/profile_chooser_controller.mm

Index: chrome/browser/ui/cocoa/profiles/profile_chooser_controller.mm
diff --git a/chrome/browser/ui/cocoa/profiles/profile_chooser_controller.mm b/chrome/browser/ui/cocoa/profiles/profile_chooser_controller.mm
index caac7e85b636c9820ddf40ac024d3837bbee4bf5..d2fbb4272d5b24c88cb7a75342c61408c3b1ebe7 100644
--- a/chrome/browser/ui/cocoa/profiles/profile_chooser_controller.mm
+++ b/chrome/browser/ui/cocoa/profiles/profile_chooser_controller.mm
@@ -4,6 +4,7 @@
 
 #import "chrome/browser/ui/cocoa/profiles/profile_chooser_controller.h"
 
+#import <AppKit/NSEvent.h>

[Mark Mentovai, 2017/02/06 19:39:18]

We don’t do this in Chrome, we just #import the top of an umbrella, like
<AppKit/AppKit.h>. But AppKit should already have come in from <Cocoa/Cocoa.h>,
so this isn’t even necessary at all.

[jlebel, 2017/02/07 10:03:26]

Yes, this import is not necessary. Sorry.

 #import <Carbon/Carbon.h>  // kVK_Return.
 #import <Cocoa/Cocoa.h>
 #include <stddef.h>
@@ -1594,7 +1595,11 @@ class ActiveProfileObserverBridge : public AvatarMenuObserver,
       showLock = item.signed_in &&
           profiles::IsLockAvailable(browser_->profile());
     } else {
-      [otherProfiles addObject:[self createOtherProfileView:i]];
+      NSButton* otherProfileView = [self createOtherProfileView:i];
+      if (!firstProfileView_) {
+        firstProfileView_ = otherProfileView;
+      }
+      [otherProfiles addObject:otherProfileView];
     }
   }
   if (!currentProfileView)  // Guest windows don't have an active profile.
@@ -2945,4 +2950,12 @@ class ActiveProfileObserverBridge : public AvatarMenuObserver,
   return incognitoAvailable && !browser_->profile()->IsGuestSession();
 }
 
+- (void)showWindow:(id)sender {
+  [super showWindow:sender];
+  NSEvent *event = [[NSApplication sharedApplication] currentEvent];
+  if (firstProfileView_ && [event type] == NSKeyDown) {
+    [[self window] makeFirstResponder:firstProfileView_];
+  }
+}
+
 @end