Local web approval test for 2 parallel requests

The flow of local web approval terminates early (cancels)
parallel approval requests. This is captured in a new test.

Bug: 1403235
Change-Id: I082b1d27ff3da00cb5711d7990920b7e99a3da21
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4270995
Commit-Queue: Anthi Orfanou <anthie@google.com>
Reviewed-by: James Lee <ljjlee@google.com>
Cr-Commit-Position: refs/heads/main@{#1107672}

chrome/browser/supervised_user/android/javatests/src/org/chromium/chrome/browser/supervised_user/WebsiteParentApprovalNativesTest.java

@@ -191,4 +191,27 @@ public void parentAuthorizationFailure() {
                 mHistogramTester.getHistogramValueCount(
                         "FamilyLinkUser.LocalWebApprovalResult", /*Cancelled=*/2));
     }
+
+    @Test
+    @MediumTest
+    public void cancelApprovalRequestIfOneAlreadyInProgress() {
+        mockParentAuthDelegateRequestLocalAuthResponse(true);
+        mTabbedActivityTestRule.loadUrl(mBlockedUrl);
+
+        WebsiteParentApprovalTestUtils.clickAskInPerson(mWebContents);
+        WebsiteParentApprovalTestUtils.clickAskInPerson(mWebContents);
+
+        WebsiteParentApprovalTestUtils.clickApprove(mBottomSheetTestSupport);
+
+        // Delay to ensure the asynchronous code that records the histograms is executed.
+        verify(mParentAuthDelegateMock, timeout(CriteriaHelper.DEFAULT_MAX_TIME_TO_POLL).times(1))
+                .requestLocalAuth(any(WindowAndroid.class), any(GURL.class), any(Callback.class));
+
+        Assert.assertEquals(1,
+                mHistogramTester.getHistogramValueCount(
+                        "FamilyLinkUser.LocalWebApprovalResult", /*Approved=*/0));
+        Assert.assertEquals(1,
+                mHistogramTester.getHistogramValueCount(
+                        "FamilyLinkUser.LocalWebApprovalResult", /*Cancelled=*/2));
+    }
 }