[M112][RDSD] Use switchUserAgent() instead of reload() for app menu R…

…DS toggle

Merge to M112.

Use TabUtils.switchUserAgent() instead of Tab.reload(). Because we
need to reload with ReloadType::ORIGINAL_REQUEST_URL.

(cherry picked from commit 4b6644e)

Bug: 1418587
Change-Id: I58e8658e4188789ef44f4b730e2615494adb35e8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4291767
Reviewed-by: Theresa Sullivan <twellington@chromium.org>
Code-Coverage: Findit <findit-for-me@appspot.gserviceaccount.com>
Commit-Queue: Shu Yang <shuyng@google.com>
Cr-Original-Commit-Position: refs/heads/main@{#1109882}
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4293140
Auto-Submit: Shu Yang <shuyng@google.com>
Reviewed-by: Sirisha Kavuluru <skavuluru@google.com>
Cr-Commit-Position: refs/branch-heads/5615@{#31}
Cr-Branched-From: 9c6408e-refs/heads/main@{#1109224}

chrome/android/java/src/org/chromium/chrome/browser/app/ChromeActivity.java

@@ -2529,7 +2529,11 @@ public boolean onMenuOrKeyboardAction(int id, boolean fromMenu) {
                 Profile profile = getCurrentTabModel().getProfile();
                 RequestDesktopUtils.setRequestDesktopSiteContentSettingsForUrl(
                         profile, currentTab.getUrl(), usingDesktopUserAgent);
-                currentTab.reload();
+                // Use TabUtils.switchUserAgent() instead of Tab.reload(). Because we need to reload
+                // with ReloadType::ORIGINAL_REQUEST_URL. See http://crbug/1418587 for details.
+                TabUtils.switchUserAgent(currentTab, usingDesktopUserAgent,
+                        /* forcedByUser */ false,
+                        UseDesktopUserAgentCaller.ON_MENU_OR_KEYBOARD_ACTION);
                 RequestDesktopUtils.maybeShowUserEducationPromptForAppMenuSelection(
                         profile, this, getModalDialogManager());
                 TrackerFactory.getTrackerForProfile(profile).notifyEvent(