MacViews: Bump up the default font sizes for dialogs to 12pt.

ui/base/default_style.h

Index: ui/base/default_style.h
diff --git a/ui/base/default_style.h b/ui/base/default_style.h
index 49790af2a8ee66dfb40d054e269a8dcef0cb6275..cd031f9c55104d3de0b92ea91a661fdb9fe5d713 100644
--- a/ui/base/default_style.h
+++ b/ui/base/default_style.h
@@ -21,16 +21,15 @@ const int kMessageFontSizeDelta = 0;
 
 // Default font size delta for dialog buttons, textfields, and labels.
 #if defined(OS_MACOSX)
-// Cocoa dialogs prefer [NSFont smallSystemFontSize] for labels (typically 11pt
-// vs 13pt).
-const int kLabelFontSizeDelta = -2;
+// Aim for 12pt for Cocoa labels ([NSFont systemFontSize] is typically 13pt).
+const int kLabelFontSizeDelta = -1;
 #else
 const int kLabelFontSizeDelta = 0;
 #endif
 
 // Font size delta for dialog titles.
 #if defined(OS_MACOSX)
-const int kTitleFontSizeDelta = 0;
+const int kTitleFontSizeDelta = 1;
 #else
 const int kTitleFontSizeDelta = 3;
 #endif