Remove ios_web_shell_egtests.PDFTestCase.

ios_web_shell_egtests.PDFTestCase can be removed now since it's covered
by WebStateObserverTest.PdfFileUrlNavigation.

Bug: 930859
Change-Id: I5bfc34f825908b1380e52a7eb1e0a20450033661
Reviewed-on: https://chromium-review.googlesource.com/c/1486533
Commit-Queue: Yi Su <mrsuyi@chromium.org>
Commit-Queue: Eugene But <eugenebut@chromium.org>
Auto-Submit: Yi Su <mrsuyi@chromium.org>
Reviewed-by: Eugene But <eugenebut@chromium.org>
Cr-Commit-Position: refs/heads/master@{#635143}

ios/web/shell/test/BUILD.gn

@@ -22,7 +22,6 @@ ios_eg_test("ios_web_shell_egtests") {
     "meta_tags_egtest.mm",
     "navigation_egtest.mm",
     "page_state_egtest.mm",
-    "pdf_egtest.mm",
     "plugin_placeholder_egtest.mm",
     "redirect_egtest.mm",
     "service_manager_egtest.mm",
@@ -101,7 +100,6 @@ bundle_data("bundle") {
   sources = [
     "http_server_files/basic_navigation_test.html",
     "http_server_files/tall_page.html",
-    "http_server_files/testpage.pdf",
   ]
   outputs = [
     "{{bundle_resources_dir}}/{{source_root_relative_dir}}/" +

ios/web/shell/test/pdf_egtest.mm

-// Copyright 2016 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#import <EarlGrey/EarlGrey.h>
-
-#import "base/test/ios/wait_util.h"
-#import "ios/web/public/test/earl_grey/web_view_matchers.h"
-#import "ios/web/public/test/http_server/http_server.h"
-#include "ios/web/public/test/http_server/http_server_util.h"
-#import "ios/web/shell/test/app/web_shell_test_util.h"
-#import "ios/web/shell/test/earl_grey/shell_earl_grey.h"
-#import "ios/web/shell/test/earl_grey/web_shell_test_case.h"
-
-#if !defined(__has_feature) || !__has_feature(objc_arc)
-#error "This file requires ARC support."
-#endif
-
-namespace {
-// URL spec for test PDF page.
-const char kTestPDFURL[] =
-    "http://ios/web/shell/test/http_server_files/testpage.pdf";
-
-// Matcher for WKWebView displaying PDF.
-id<GREYMatcher> WebViewWithPdf() {
-  web::WebState* web_state = web::shell_test_util::GetCurrentWebState();
-  MatchesBlock matches = ^BOOL(UIView* view) {
-    return base::test::ios::WaitUntilConditionOrTimeout(
-        base::test::ios::kWaitForUIElementTimeout, ^{
-          return web_state->GetContentsMimeType() == "application/pdf";
-        });
-  };
-
-  DescribeToBlock describe = ^(id<GREYDescription> description) {
-    [description appendText:@"web view with PDF"];
-  };
-
-  return grey_allOf(
-      WebViewInWebState(web_state),
-      [[GREYElementMatcherBlock alloc] initWithMatchesBlock:matches
-                                           descriptionBlock:describe],
-      nil);
-}
-
-}  // namespace
-
-using web::test::HttpServer;
-
-// PDF test cases for the web shell.
-@interface PDFTestCase : WebShellTestCase
-@end
-
-@implementation PDFTestCase
-
-// Tests MIME type of the loaded PDF document.
-- (void)testMIMEType {
-  web::test::SetUpFileBasedHttpServer();
-  [ShellEarlGrey loadURL:HttpServer::MakeUrl(kTestPDFURL)];
-  [[EarlGrey selectElementWithMatcher:WebViewWithPdf()]
-      assertWithMatcher:grey_notNil()];
-}
-
-@end