Add a notice about other forms of browsing history to the History WebUI.

chrome/browser/ui/webui/history_ui.cc

Index: chrome/browser/ui/webui/history_ui.cc
diff --git a/chrome/browser/ui/webui/history_ui.cc b/chrome/browser/ui/webui/history_ui.cc
index c07d39c6efc6e457fb8363dc0e857d5968fd503e..8f4e094299b65ff449e53d1c23d6a00180e30ab7 100644
--- a/chrome/browser/ui/webui/history_ui.cc
+++ b/chrome/browser/ui/webui/history_ui.cc
@@ -42,6 +42,9 @@ static const char kOtherDevicesJsFile[] = "other_devices.js";
 
 namespace {
 
+static const char kMyActivityUrl[] =
+    "https://history.google.com/history/?utm_source=chrome_h";
+
 #if defined(OS_MACOSX)
 const char kIncognitoModeShortcut[] = "("
     "\xE2\x87\xA7"  // Shift symbol (U+21E7 'UPWARDS WHITE ARROW').
@@ -128,6 +131,10 @@ content::WebUIDataSource* CreateHistoryUIHTMLSource(Profile* profile) {
   source->AddLocalizedString("hasSyncedResults",
                              IDS_HISTORY_HAS_SYNCED_RESULTS);
   source->AddLocalizedString("noSyncedResults", IDS_HISTORY_NO_SYNCED_RESULTS);
+  source->AddString("otherFormsOfBrowsingHistory",
+                    l10n_util::GetStringFUTF16(
+                        IDS_HISTORY_OTHER_FORMS_OF_HISTORY,
+                        base::ASCIIToUTF16(kMyActivityUrl)));
   source->AddLocalizedString("cancel", IDS_CANCEL);
   source->AddLocalizedString("deleteConfirm",
                              IDS_HISTORY_DELETE_PRIOR_VISITS_CONFIRM_BUTTON);