Add tooltips to profile name when truncated

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 2c8a22324cf495473a723774790156fe4271c5b1..907da6ef684a9499bff51238e7bd06da5f8bb01c 100644
--- a/chrome/browser/ui/cocoa/profiles/profile_chooser_controller.mm
+++ b/chrome/browser/ui/cocoa/profiles/profile_chooser_controller.mm
@@ -701,6 +701,13 @@ class ActiveProfileObserverBridge : public AvatarMenuObserver,
           IDS_PROFILES_NEW_AVATAR_MENU_EDIT_NAME_ACCESSIBLE_NAME,
           base::SysNSStringToUTF16(profileName))
                                     forAttribute:NSAccessibilityTitleAttribute];
+

[groby-ooo-7-16, 2015/02/19 19:00:10]

Question: Why not allow expansion tooltips on |profileNameTextField_| instead?
(I assume the containing control intercepts those, but I want to make sure we
can't do that)

+      NSSize textSize = [profileName sizeWithAttributes:
+          @{NSFontAttributeName: [NSFont labelFontOfSize:kTitleFontSize]}];

[groby-ooo-7-16, 2015/02/19 19:00:10]

[profileNameTextField_ font] instead, please.

+
+      if (textSize.width > frameRect.size.width - [hoverImage size].width * 2) {

[groby-ooo-7-16, 2015/02/19 19:00:10]

... > NSWidth(frameRect)

(We're usually avoiding reaching into NSRect members, if we can)

+          [self setToolTip:profileName];
+      }
     }
 
     [[self cell] accessibilitySetOverrideValue:NSAccessibilityButtonRole