Rename HACK_FORCE_TEXT_AUTOSIZING_ON_DESKTOP

LayoutTests/fast/text-autosizing/resources/autosizingTest.js

Index: LayoutTests/fast/text-autosizing/resources/autosizingTest.js
diff --git a/LayoutTests/fast/text-autosizing/resources/autosizingTest.js b/LayoutTests/fast/text-autosizing/resources/autosizingTest.js
index ea86302f5323dec198e4463e403051b0cdd3bb0d..e79c22d500029d98e1a6b834897b8a42ba912c99 100644
--- a/LayoutTests/fast/text-autosizing/resources/autosizingTest.js
+++ b/LayoutTests/fast/text-autosizing/resources/autosizingTest.js
@@ -16,7 +16,7 @@ function initAutosizingTest() {
         console.warn("This test depends on Text Autosizing being enabled. Run with content shell"
                 + "and --dump-render-tree or manually enable Text Autosizing and either use a "
                 + "mobile device with 320px device-width (like Nexus S or iPhone), or define "
-                + "HACK_FORCE_TEXT_AUTOSIZING_ON_DESKTOP.");
+                + "DEBUG_TEXT_AUTOSIZING_ON_DESKTOP.");
     }
 }