[Material][Mac] Adjust User Account Button

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

Index: chrome/browser/ui/cocoa/profiles/avatar_button_controller.mm
diff --git a/chrome/browser/ui/cocoa/profiles/avatar_button_controller.mm b/chrome/browser/ui/cocoa/profiles/avatar_button_controller.mm
index 6163f015f1daf352ec8af7f7bcdc90c51664d6d1..86c4dad4ffe827fc88c0de2bc63dcdcd8d0acdb8 100644
--- a/chrome/browser/ui/cocoa/profiles/avatar_button_controller.mm
+++ b/chrome/browser/ui/cocoa/profiles/avatar_button_controller.mm
@@ -74,6 +74,9 @@ CGFloat ButtonExtraPadding() {
 // Extra padding for the MD signed out avatar button.
 const CGFloat kMaterialSignedOutWidthPadding = 2;
 
+// Kern value for the MD avatar button title.
+const CGFloat kMaterialTitleKern = 0.25;
+
 }  // namespace
 
 // Button cell with a custom border given by a set of nine-patch image grids.
@@ -340,13 +343,28 @@ const CGFloat kMaterialSignedOutWidthPadding = 2;
       [[NSMutableParagraphStyle alloc] init]);
   [paragraphStyle setAlignment:NSLeftTextAlignment];
 
-  base::scoped_nsobject<NSAttributedString> attributedTitle(
-      [[NSAttributedString alloc]
-          initWithString:buttonTitle
-              attributes:@{ NSShadowAttributeName : shadow.get(),
-                            NSForegroundColorAttributeName : foregroundColor,
-                            NSParagraphStyleAttributeName : paragraphStyle }]);
-  [button_ setAttributedTitle:attributedTitle];
+  if (ui::MaterialDesignController::IsModeMaterial()) {
+    base::scoped_nsobject<NSAttributedString> attributedTitle(
+        [[NSAttributedString alloc]
+            initWithString:buttonTitle
+                attributes:@{
+                  NSForegroundColorAttributeName : foregroundColor,
+                  NSParagraphStyleAttributeName : paragraphStyle,
+                  NSKernAttributeName :
+                      [NSNumber numberWithFloat:kMaterialTitleKern]
+                }]);
+    [button_ setAttributedTitle:attributedTitle];
+  } else {
+    base::scoped_nsobject<NSAttributedString> attributedTitle(
+        [[NSAttributedString alloc]
+            initWithString:buttonTitle
+                attributes:@{
+                  NSShadowAttributeName : shadow.get(),
+                  NSForegroundColorAttributeName : foregroundColor,
+                  NSParagraphStyleAttributeName : paragraphStyle
+                }]);
+    [button_ setAttributedTitle:attributedTitle];
+  }
   [button_ sizeToFit];
 
   if (layoutParent) {