Read isFirstRunFlowComplete from shared preference

When test is batching, FirstRunStatus#getFirstRunFlowComplete could
stored wrong value to restore due to commandline switch. Replace the
original value from the shared preference directly.

Bug: 1158467
Change-Id: I5dccfe3b28167c78c04f5ea04b348faff20677a9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2591232Reviewed-by: Donn Denman <donnd@chromium.org>
Commit-Queue: Wenyu Fu <wenyufu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#836861}

chrome/android/javatests/src/org/chromium/chrome/browser/contextualsearch/ContextualSearchManagerTest.java

@@ -89,6 +89,7 @@ import org.chromium.chrome.browser.layouts.animation.CompositorAnimationHandler;
 import org.chromium.chrome.browser.locale.LocaleManager;
 import org.chromium.chrome.browser.omnibox.UrlBar;
 import org.chromium.chrome.browser.preferences.ChromePreferenceKeys;
+import org.chromium.chrome.browser.preferences.SharedPreferencesManager;
 import org.chromium.chrome.browser.tab.Tab;
 import org.chromium.chrome.browser.tab.TabCreationState;
 import org.chromium.chrome.browser.tabmodel.EmptyTabModelSelectorObserver;
@@ -3329,7 +3330,10 @@ public class ContextualSearchManagerTest {
     public void testFirstRunNotCompleted(@EnabledFeature int enabledFeature) throws Exception {
         // Store the original value in a temp, and mark the first run as not completed
         // for this test case.
-        boolean originalIsFirstRunComplete = FirstRunStatus.getFirstRunFlowComplete();
+        // Getting value from shared preference rather than FirstRunStatus#getFirstRunFlowComplete
+        // to get rid of the impact from commandline switch. See https://crbug.com/1158467
+        boolean originalIsFirstRunComplete = SharedPreferencesManager.getInstance().readBoolean(
+                ChromePreferenceKeys.FIRST_RUN_FLOW_COMPLETE, false);
         FirstRunStatus.setFirstRunFlowComplete(false);
 
         // Simulate a tap that resolves to show the Bar.