Fix compilation warning in arc_app_utils.cc.

../../chrome/browser/ui/app_list/arc/arc_app_utils.cc:385:13: warning: format specifies type 'long' but the argument has type 'int64_t' (aka 'long long') [-Wformat]
            (base::TimeTicks::Now() - base::TimeTicks()).InMilliseconds())});
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../chrome/browser/ui/app_list/arc/arc_app_utils.cc:214:39: note: format string is defined here
    "S.org.chromium.arc.request.start=%ld";

Change-Id: Idd0f1dd9923a5d4dd66783f5af5037efaeb7109f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1947662Reviewed-by: Yury Khmel <khmel@chromium.org>
Commit-Queue: Sergey Poromov <poromov@chromium.org>
Auto-Submit: Sergey Poromov <poromov@chromium.org>
Cr-Commit-Position: refs/heads/master@{#721435}

chrome/browser/ui/app_list/arc/arc_app_utils.cc

@@ -211,7 +211,7 @@ int64_t GetValidDisplayId(int64_t display_id) {
 // Package names, kept in sorted order.
 const char kInitialStartParam[] = "S.org.chromium.arc.start_type=initialStart";
 const char kRequestStartTimeParamTemplate[] =
-    "S.org.chromium.arc.request.start=%ld";
+    "S.org.chromium.arc.request.start=%" PRId64;
 const char kPlayStoreActivity[] = "com.android.vending.AssetBrowserActivity";
 const char kPlayStorePackage[] = "com.android.vending";
 const char kSettingsAppDomainUrlActivity[] =