[Mac] Allow "Enter" to activate the buttons in the new avatar bubble.

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

Index: chrome/browser/ui/cocoa/profiles/profile_chooser_controller_unittest.mm
diff --git a/chrome/browser/ui/cocoa/profiles/profile_chooser_controller_unittest.mm b/chrome/browser/ui/cocoa/profiles/profile_chooser_controller_unittest.mm
index 2a4958e4bd583e1341289ee2271222bd444f5abf..72494dc36fc11ad076243047baf488904417727c 100644
--- a/chrome/browser/ui/cocoa/profiles/profile_chooser_controller_unittest.mm
+++ b/chrome/browser/ui/cocoa/profiles/profile_chooser_controller_unittest.mm
@@ -95,6 +95,11 @@ class ProfileChooserControllerTest : public CocoaProfileTest {
         switches::kFastUserSwitching);
   }
 
+  NSButton* GetButtonFromButtonContainer(NSView* container) {
+    return base::mac::ObjCCast<NSButton>(
+        [[container subviews] objectAtIndex:0]);
+  }
+
   ProfileChooserController* controller() { return controller_; }
   AvatarMenu* menu() { return menu_; }
 
@@ -129,7 +134,7 @@ TEST_F(ProfileChooserControllerTest, InitialLayoutWithNewMenu) {
 
   // There should be an incognito button.
   NSButton* incognitoButton =
-      base::mac::ObjCCast<NSButton>([buttonSubviews objectAtIndex:0]);
+      GetButtonFromButtonContainer([buttonSubviews objectAtIndex:0]);
   EXPECT_EQ(@selector(goIncognito:), [incognitoButton action]);
   EXPECT_EQ(controller(), [incognitoButton target]);
 
@@ -138,7 +143,7 @@ TEST_F(ProfileChooserControllerTest, InitialLayoutWithNewMenu) {
 
   // There should be a user switcher button.
   NSButton* userSwitcherButton =
-      base::mac::ObjCCast<NSButton>([buttonSubviews objectAtIndex:2]);
+      GetButtonFromButtonContainer([buttonSubviews objectAtIndex:2]);
   EXPECT_EQ(@selector(showUserManager:), [userSwitcherButton action]);
   EXPECT_EQ(controller(), [userSwitcherButton target]);
 
@@ -207,7 +212,7 @@ TEST_F(ProfileChooserControllerTest, InitialLayoutWithFastUserSwitcher) {
     // Each profile button has a separator.
     EXPECT_TRUE([[subviews objectAtIndex:i] isKindOfClass:[NSBox class]]);
 
-    NSButton* button = base::mac::ObjCCast<NSButton>(
+    NSButton* button = GetButtonFromButtonContainer(
         [subviews objectAtIndex:i-1]);
     EXPECT_EQ(menu()->GetItemAt(profileIndex).name,
               base::SysNSStringToUTF16([button title]));
@@ -276,7 +281,7 @@ TEST_F(ProfileChooserControllerTest, OtherProfilesSortedAlphabetically) {
   int sortedNameIndex = 0;
   for (int i = 9; i >= 2; i -= 2) {
     // The item at index i is the separator.
-    NSButton* button = base::mac::ObjCCast<NSButton>(
+    NSButton* button = GetButtonFromButtonContainer(
         [subviews objectAtIndex:i-1]);
     EXPECT_TRUE(
         [[button title] isEqualToString:sortedNames[sortedNameIndex++]]);
@@ -398,7 +403,7 @@ TEST_F(ProfileChooserControllerTest, AccountManagementLayout) {
 
   // There should be an incognito button.
   NSButton* incognitoButton =
-      base::mac::ObjCCast<NSButton>([buttonSubviews objectAtIndex:0]);
+      GetButtonFromButtonContainer([buttonSubviews objectAtIndex:0]);
   EXPECT_EQ(@selector(goIncognito:), [incognitoButton action]);
   EXPECT_EQ(controller(), [incognitoButton target]);
 
@@ -407,7 +412,7 @@ TEST_F(ProfileChooserControllerTest, AccountManagementLayout) {
 
   // There should be a user switcher button.
   NSButton* userSwitcherButton =
-      base::mac::ObjCCast<NSButton>([buttonSubviews objectAtIndex:2]);
+      GetButtonFromButtonContainer([buttonSubviews objectAtIndex:2]);
   EXPECT_EQ(@selector(showUserManager:), [userSwitcherButton action]);
   EXPECT_EQ(controller(), [userSwitcherButton target]);
 
@@ -428,7 +433,7 @@ TEST_F(ProfileChooserControllerTest, AccountManagementLayout) {
   NSButton* genericAccount =
       base::mac::ObjCCast<NSButton>([accountsListSubviews objectAtIndex:0]);
   NSButton* genericAccountDelete = base::mac::ObjCCast<NSButton>(
-  [[genericAccount subviews] objectAtIndex:0]);
+      [[genericAccount subviews] objectAtIndex:0]);
   EXPECT_EQ(@selector(showAccountRemovalView:), [genericAccountDelete action]);
   EXPECT_EQ(controller(), [genericAccountDelete target]);
   EXPECT_NE(-1, [genericAccountDelete tag]);
@@ -490,7 +495,7 @@ TEST_F(ProfileChooserControllerTest, SignedInProfileLockDisabled) {
 
   // The last button should not be the lock button.
   NSButton* lastButton =
-      base::mac::ObjCCast<NSButton>([buttonSubviews objectAtIndex:0]);
+      GetButtonFromButtonContainer([buttonSubviews objectAtIndex:0]);
   ASSERT_TRUE(lastButton);
   EXPECT_NE(@selector(lockProfile:), [lastButton action]);
 }
@@ -518,7 +523,7 @@ TEST_F(ProfileChooserControllerTest, SignedInProfileLockEnabled) {
 
   // There should be a lock button.
   NSButton* lockButton =
-      base::mac::ObjCCast<NSButton>([buttonSubviews objectAtIndex:0]);
+      GetButtonFromButtonContainer([buttonSubviews objectAtIndex:0]);
   ASSERT_TRUE(lockButton);
   EXPECT_EQ(@selector(lockProfile:), [lockButton action]);
   EXPECT_EQ(controller(), [lockButton target]);