Close the account chooser and auto sign-in opt in with ESC on Mac.

chrome/browser/ui/cocoa/passwords/account_chooser_view_controller.mm

Index: chrome/browser/ui/cocoa/passwords/account_chooser_view_controller.mm
diff --git a/chrome/browser/ui/cocoa/passwords/account_chooser_view_controller.mm b/chrome/browser/ui/cocoa/passwords/account_chooser_view_controller.mm
index d9c49ffbc2eb855fb8f7e9565a00eac9ba73db82..8ba39275d543e9fb7edca8b17dd73ec22a33fa64 100644
--- a/chrome/browser/ui/cocoa/passwords/account_chooser_view_controller.mm
+++ b/chrome/browser/ui/cocoa/passwords/account_chooser_view_controller.mm
@@ -8,6 +8,7 @@
 #include "base/mac/scoped_nsobject.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/strings/utf_string_conversions.h"
+#import "chrome/browser/ui/cocoa/key_equivalent_constants.h"
 #import "chrome/browser/ui/cocoa/passwords/account_avatar_fetcher_manager.h"
 #import "chrome/browser/ui/cocoa/passwords/credential_item_button.h"
 #import "chrome/browser/ui/cocoa/passwords/passwords_bubble_utils.h"
@@ -94,6 +95,7 @@ CGFloat CredentialHeight() {
   cancelButton_ = DialogButton(l10n_util::GetNSString(IDS_APP_CANCEL));
   [cancelButton_ setTarget:self];
   [cancelButton_ setAction:@selector(onCancelClicked:)];
+  [cancelButton_ setKeyEquivalent:kKeyEquivalentEscape];
   [view addSubview:cancelButton_];
 
   // Lay out the views.