[Chrome Home Survey] Add flag for Chrome Home Survey

Adds & integrates a flag to enable Chrome Home Survey
  without the use of CommandLines

Bug: 792710
Change-Id: I13d69ee01aa6a3b81d1966c76fa4db3c70bc27fb
Reviewed-on: https://chromium-review.googlesource.com/813075
Commit-Queue: Daniel Park <[email protected]>
Reviewed-by: Theresa <[email protected]>
Cr-Commit-Position: refs/heads/master@{#522650}
diff --git a/chrome/browser/flag_descriptions.cc b/chrome/browser/flag_descriptions.cc
index 3668224..86dd5e5 100644
--- a/chrome/browser/flag_descriptions.cc
+++ b/chrome/browser/flag_descriptions.cc
@@ -1682,6 +1682,11 @@
 const char kChromeHomeClearUrlOnOpenDescription[] =
     "Clear omnibox URL when the bottom sheet is opened.";
 
+const char kChromeHomeEnableSurveyName[] = "Enable Chrome Home survey";
+const char kChromeHomeEnableSurveyDescription[] =
+    "If enabled, the survey process will allow surveys using sample "
+    "parameters.";
+
 const char kChromeHomeInactivitySheetExpansionName[] =
     "Expansion of Chrome Home bottom sheet on startup";
 const char kChromeHomeInactivitySheetExpansionDescription[] =