base::mac::IsOSSierra() -> base::mac::IsOS10_12(), etc.

third_party/WebKit/Source/platform/mac/VersionUtilMacTest.mm

Index: third_party/WebKit/Source/platform/mac/VersionUtilMacTest.mm
diff --git a/third_party/WebKit/Source/platform/mac/VersionUtilMacTest.mm b/third_party/WebKit/Source/platform/mac/VersionUtilMacTest.mm
index da02f8b5e25fc50a8ca56e0437e881e8d10dc173..7a6b66bac0975164f6999b544bff76a6d32bf024 100644
--- a/third_party/WebKit/Source/platform/mac/VersionUtilMacTest.mm
+++ b/third_party/WebKit/Source/platform/mac/VersionUtilMacTest.mm
@@ -29,24 +29,24 @@
 TEST(VersionUtilMac, AppKitVersions)
 {
     if (floor(NSAppKitVersionNumber) == NSAppKitVersionNumber10_9) {
-        EXPECT_TRUE(blink::IsOSMavericks());
-        EXPECT_FALSE(blink::IsOSYosemite());
-        EXPECT_FALSE(blink::IsOSElCapitan());
+        EXPECT_TRUE(blink::IsOS10_9());
+        EXPECT_FALSE(blink::IsOS10_10());
+        EXPECT_FALSE(blink::IsOS10_11());
         return;
     }
 
     if (floor(NSAppKitVersionNumber) <= NSAppKitVersionNumber10_10Max &&
         floor(NSAppKitVersionNumber) >=  NSAppKitVersionNumber10_10) {
-        EXPECT_FALSE(blink::IsOSMavericks());
-        EXPECT_TRUE(blink::IsOSYosemite());
-        EXPECT_FALSE(blink::IsOSElCapitan());
+        EXPECT_FALSE(blink::IsOS10_9());
+        EXPECT_TRUE(blink::IsOS10_10());
+        EXPECT_FALSE(blink::IsOS10_11());
         return;
     }
 
     if (floor(NSAppKitVersionNumber) == NSAppKitVersionNumber10_11Max) {
-        EXPECT_FALSE(blink::IsOSMavericks());
-        EXPECT_FALSE(blink::IsOSYosemite());
-        EXPECT_TRUE(blink::IsOSElCapitan());
+        EXPECT_FALSE(blink::IsOS10_9());
+        EXPECT_FALSE(blink::IsOS10_10());
+        EXPECT_TRUE(blink::IsOS10_11());
         return;
     }
 }