Add milestone to survey site context

BUG=874966

Change-Id: I77bf82689f064128bcd9a511c8be19d1403dc4ff
Reviewed-on: https://chromium-review.googlesource.com/1188440Reviewed-by: Yusuf Ozuysal <yusufo@chromium.org>
Commit-Queue: Theresa <twellington@chromium.org>
Cr-Commit-Position: refs/heads/master@{#585950}

chrome/android/java/src/org/chromium/chrome/browser/survey/ChromeSurveyController.java

@@ -20,6 +20,7 @@ import org.chromium.base.metrics.RecordUserAction;
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.ChromeFeatureList;
 import org.chromium.chrome.browser.ChromeSwitches;
+import org.chromium.chrome.browser.ChromeVersionInfo;
 import org.chromium.chrome.browser.infobar.InfoBarContainer;
 import org.chromium.chrome.browser.infobar.InfoBarContainerLayout.Item;
 import org.chromium.chrome.browser.infobar.InfoBarIdentifier;
@@ -142,10 +143,10 @@ public class ChromeSurveyController implements InfoBarContainer.InfoBarAnimation
             }
         };
 
-        String siteContext =
-                ChromeFeatureList.isEnabled(ChromeFeatureList.HORIZONTAL_TAB_SWITCHER_ANDROID)
-                ? "HorizontalTabSwitcher"
-                : "NotHorizontalTabSwitcher";
+        String siteContext = ChromeVersionInfo.getProductVersion() + ","
+                + (ChromeFeatureList.isEnabled(ChromeFeatureList.HORIZONTAL_TAB_SWITCHER_ANDROID)
+                                  ? "HorizontalTabSwitcher"
+                                  : "NotHorizontalTabSwitcher");
         surveyController.downloadSurvey(context, siteId, onSuccessRunnable, siteContext);
     }