[iOS] Move ensureAppLaunchedWithFeaturesEnabled calls to proper place.

Moved ensureAppLaunchedWithFeaturesEnabled from -setUp to overriding
launchAppForTestMethod method of BaseEarlGreyTestCase. This will reduce
unnecessary relaunches of app, which will make tests suites run faster.

Bug: 1009017

Change-Id: I6f39404ae54e5a057ddba37867e08c45f27a9495
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1928587Reviewed-by: Javier Ernesto Flores Robles <javierrobles@chromium.org>
Reviewed-by: Gauthier Ambard <gambard@chromium.org>
Commit-Queue: Zhaoyang Li <zhaoyangli@chromium.org>
Cr-Commit-Position: refs/heads/master@{#719334}

ios/chrome/browser/ui/autofill/manual_fill/card_view_controller_egtest.mm

@@ -105,14 +105,16 @@ BOOL WaitForKeyboardToAppear() {
 
 @implementation CreditCardViewControllerTestCase
 
-- (void)setUp {
-  [super setUp];
+- (void)launchAppForTestMethod {
   [[AppLaunchManager sharedManager]
       ensureAppLaunchedWithFeaturesEnabled:{kSettingsAddPaymentMethod,
                                             kCreditCardScanner}
                                   disabled:{}
                               forceRestart:NO];
+}
 
+- (void)setUp {
+  [super setUp];
   GREYAssertTrue(self.testServer->Start(), @"Test server failed to start.");
   const GURL URL = self.testServer->GetURL(kFormHTMLFile);
   [ChromeEarlGrey loadURL:URL];

ios/chrome/browser/ui/settings/autofill/autofill_add_credit_card_egtest.mm

@@ -90,13 +90,16 @@ id<GREYMatcher> CardNumberIconView(NSString* icon_type) {
 
 @implementation AutofillAddCreditCardTestCase
 
-- (void)setUp {
-  [super setUp];
+- (void)launchAppForTestMethod {
   [[AppLaunchManager sharedManager]
       ensureAppLaunchedWithFeaturesEnabled:{kSettingsAddPaymentMethod,
                                             kCreditCardScanner}
                                   disabled:{}
                               forceRestart:NO];
+}
+
+- (void)setUp {
+  [super setUp];
   GREYAssertTrue([ChromeEarlGrey isSettingsAddPaymentMethodEnabled],
                  @"SettingsAddPaymentMethod should be enabled");
   GREYAssertTrue([ChromeEarlGrey isCreditCardScannerEnabled],