Test accessibility of Reading List

BUG=none

Review-Url: https://codereview.chromium.org/2610923010
Cr-Commit-Position: refs/heads/master@{#441910}

ios/chrome/browser/ui/reading_list/reading_list_egtest.mm

@@ -15,6 +15,7 @@
 #import "ios/chrome/browser/ui/reading_list/reading_list_collection_view_item.h"
 #include "ios/chrome/grit/ios_strings.h"
 #import "ios/chrome/test/app/chrome_test_util.h"
+#import "ios/chrome/test/earl_grey/accessibility_util.h"
 #import "ios/chrome/test/earl_grey/chrome_earl_grey.h"
 #import "ios/chrome/test/earl_grey/chrome_earl_grey_ui.h"
 #import "ios/chrome/test/earl_grey/chrome_matchers.h"
@@ -178,6 +179,15 @@ size_t ModelReadSize(ReadingListModel* model) {
     model->RemoveEntryByURL(url);
 }
 
+// Tests that the Reading List view is accessible.
+- (void)testAccessibility {
+  AddEntriesAndEnterEdit();
+  // In edit mode.
+  chrome_test_util::VerifyAccessibilityForCurrentScreen();
+  TapButtonWithID(IDS_IOS_READING_LIST_CANCEL_BUTTON);
+  chrome_test_util::VerifyAccessibilityForCurrentScreen();
+}
+
 // Tests that sharing a web page to the Reading List results in a snackbar
 // appearing, and that the Reading List entry is present in the Reading List.
 - (void)testSavingToReadingList {