Disable flaky RangeHistoryWebUITest.allView on ChromeOS

chrome/test/data/webui/history_browsertest.js

Index: chrome/test/data/webui/history_browsertest.js
diff --git a/chrome/test/data/webui/history_browsertest.js b/chrome/test/data/webui/history_browsertest.js
index 57fe49079fdeb260e2ce7ad21e578569fb279a46..872915a45a2f9c1c3e7f62a60917e3f5b47f1a5d 100644
--- a/chrome/test/data/webui/history_browsertest.js
+++ b/chrome/test/data/webui/history_browsertest.js
@@ -661,9 +661,9 @@ RangeHistoryWebUITest.prototype = {
 };
 
 /**
- * Disabled due to timeout on Mac http://crbug.com/377338
+ * Disabled due to timeout on Mac and ChromeOS http://crbug.com/377338
  */
-GEN('#if defined(OS_MACOSX)');
+GEN('#if defined(OS_MACOSX) || defined(OS_CHROMEOS)');
 GEN('#define MAYBE_allView DISABLED_allView');
 GEN('#else');
 GEN('#define MAYBE_allView allView');