Remove ASSERT_UNUSED

third_party/WebKit/Source/platform/fonts/mac/FontCacheMac.mm

Index: third_party/WebKit/Source/platform/fonts/mac/FontCacheMac.mm
diff --git a/third_party/WebKit/Source/platform/fonts/mac/FontCacheMac.mm b/third_party/WebKit/Source/platform/fonts/mac/FontCacheMac.mm
index 015ba6973f2c5692b5235a1e1704f43ee82ca3b9..5956c7a737beead71d6df78f75f6246d807c35e4 100644
--- a/third_party/WebKit/Source/platform/fonts/mac/FontCacheMac.mm
+++ b/third_party/WebKit/Source/platform/fonts/mac/FontCacheMac.mm
@@ -76,9 +76,8 @@ static void fontCacheRegisteredFontsChangedNotificationCallback(
     CFStringRef name,
     const void*,
     CFDictionaryRef) {
-  ASSERT_UNUSED(observer, observer == FontCache::fontCache());
-  ASSERT_UNUSED(
-      name, CFEqual(name, kCTFontManagerRegisteredFontsChangedNotification));
+  DCHECK_EQ(observer, FontCache::fontCache());
+  DCHECK(CFEqual(name, kCTFontManagerRegisteredFontsChangedNotification));
   invalidateFontCache();
 }