Revert of [ios Mojo] Integration test for Mojo WebUI.

ios/web/webui/web_ui_mojo_inttest.mm

Index: ios/web/webui/web_ui_mojo_inttest.mm
diff --git a/ios/web/webui/web_ui_mojo_inttest.mm b/ios/web/webui/web_ui_mojo_inttest.mm
deleted file mode 100644
index b7fa5450f0723ac3af507bc44ef4807c9182bf58..0000000000000000000000000000000000000000
--- a/ios/web/webui/web_ui_mojo_inttest.mm
+++ /dev/null
@@ -1,164 +0,0 @@
-// 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.
-
-#include <memory>
-
-#include "base/run_loop.h"
-#import "base/test/ios/wait_util.h"
-#include "ios/public/provider/web/web_ui_ios_controller.h"
-#include "ios/public/provider/web/web_ui_ios_controller_factory.h"
-#import "ios/web/public/navigation_manager.h"
-#include "ios/web/public/web_ui_ios_data_source.h"
-#include "ios/web/test/grit/test_resources.h"
-#include "ios/web/test/mojo_test.mojom.h"
-#include "ios/web/test/test_url_constants.h"
-#import "ios/web/test/web_int_test.h"
-#import "ios/web/web_state/web_state_impl.h"
-#include "mojo/public/cpp/bindings/binding_set.h"
-#include "services/shell/public/cpp/interface_registry.h"
-#include "url/gurl.h"
-#include "url/scheme_host_port.h"
-
-namespace web {
-
-namespace {
-
-// Hostname for test WebUI page.
-const char kTestWebUIURLHost[] = "testwebui";
-
-// UI handler class which communicates with test WebUI page as follows:
-// - page sends "syn" message to |TestUIHandler|
-// - |TestUIHandler| replies with "ack" message
-// - page replies back with "fin"
-//
-// Once "fin" is received |IsFinReceived()| call will return true, indicating
-// that communication was successful. See test WebUI page code here:
-// ios/web/test/data/mojo_test.js
-class TestUIHandler : public TestUIHandlerMojo,
-                      public shell::InterfaceFactory<TestUIHandlerMojo> {
- public:
-  TestUIHandler() {}
-  ~TestUIHandler() override {}
-
-  // Returns true if "fin" has been received.
-  bool IsFinReceived() { return fin_received_; }
-
-  // TestUIHandlerMojo overrides.
-  void HandleJsMessage(const mojo::String& message, TestPagePtr page) override {
-    if (message.get() == "syn") {
-      // Received "syn" message from WebUI page, send "ack" as reply.
-      DCHECK(!syn_received_);
-      DCHECK(!fin_received_);
-      syn_received_ = true;
-      NativeMessageResultMojoPtr result(NativeMessageResultMojo::New());
-      result->message = mojo::String::From("ack");
-      page->HandleNativeMessage(std::move(result));
-    } else if (message.get() == "fin") {
-      // Received "fin" from the WebUI page in response to "ack".
-      DCHECK(syn_received_);
-      DCHECK(!fin_received_);
-      fin_received_ = true;
-    } else {
-      NOTREACHED();
-    }
-  }
-
- private:
-  // shell::InterfaceFactory overrides.
-  void Create(shell::Connection* connection,
-              mojo::InterfaceRequest<TestUIHandlerMojo> request) override {
-    bindings_.AddBinding(this, std::move(request));
-  }
-
-  mojo::BindingSet<TestUIHandlerMojo> bindings_;
-  // |true| if "syn" has been received.
-  bool syn_received_ = false;
-  // |true| if "fin" has been received.
-  bool fin_received_ = false;
-};
-
-// Controller for test WebUI.
-class TestUI : public WebUIIOSController {
- public:
-  // Constructs controller from |web_ui| and |ui_handler| which will communicate
-  // with test WebUI page.
-  TestUI(WebUIIOS* web_ui, TestUIHandler* ui_handler)
-      : WebUIIOSController(web_ui) {
-    web::WebUIIOSDataSource* source =
-        web::WebUIIOSDataSource::Create(kTestWebUIURLHost);
-
-    source->AddResourcePath("mojo_test.js", IDR_MOJO_TEST_JS);
-    source->AddResourcePath("ios/web/test/mojo_test.mojom",
-                            IDR_MOJO_TEST_MOJO_JS);
-    source->SetDefaultResource(IDR_MOJO_TEST_HTML);
-
-    web::WebState* web_state = web_ui->GetWebState();
-    web::WebUIIOSDataSource::Add(web_state->GetBrowserState(), source);
-
-    web_state->GetMojoInterfaceRegistry()->AddInterface(ui_handler);
-  }
-};
-
-// Factory that creates TestUI controller.
-class TestWebUIControllerFactory : public WebUIIOSControllerFactory {
- public:
-  // Constructs a controller factory which will eventually create |ui_handler|.
-  explicit TestWebUIControllerFactory(TestUIHandler* ui_handler)
-      : ui_handler_(ui_handler) {}
-
-  // WebUIIOSControllerFactory overrides.
-  WebUIIOSController* CreateWebUIIOSControllerForURL(
-      WebUIIOS* web_ui,
-      const GURL& url) const override {
-    DCHECK_EQ(url.scheme(), kTestWebUIScheme);
-    DCHECK_EQ(url.host(), kTestWebUIURLHost);
-    return new TestUI(web_ui, ui_handler_);
-  }
-
- private:
-  // UI handler class which communicates with test WebUI page.
-  TestUIHandler* ui_handler_;
-};
-}  // namespace
-
-// A test fixture for verifying mojo comminication for WebUI.
-class WebUIMojoTest : public WebIntTest {
- protected:
-  WebUIMojoTest()
-      : web_state_(new WebStateImpl(GetBrowserState())),
-        ui_handler_(new TestUIHandler()) {
-    web_state_->GetNavigationManagerImpl().InitializeSession(nil, nil, NO, 0);
-    WebUIIOSControllerFactory::RegisterFactory(
-        new TestWebUIControllerFactory(ui_handler_.get()));
-  }
-
-  // Returns WebState which loads test WebUI page.
-  WebStateImpl* web_state() { return web_state_.get(); }
-  // Returns UI handler which communicates with WebUI page.
-  TestUIHandler* test_ui_handler() { return ui_handler_.get(); }
-
- private:
-  std::unique_ptr<WebStateImpl> web_state_;
-  std::unique_ptr<TestUIHandler> ui_handler_;
-};
-
-// Tests that JS can send messages to the native code and vice versa.
-// TestUIHandler is used for communication and test suceeds only when
-// |TestUIHandler| sucessfully receives "ack" message from WebUI page.
-TEST_F(WebUIMojoTest, MessageExchange) {
-  web_state()->SetWebUsageEnabled(true);
-  web_state()->GetWebController().useMojoForWebUI = YES;
-  web_state()->GetView();  // WebState won't load URL without view.
-  NavigationManager::WebLoadParams load_params(GURL(
-      url::SchemeHostPort(kTestWebUIScheme, kTestWebUIURLHost, 0).Serialize()));
-  web_state()->GetNavigationManager()->LoadURLWithParams(load_params);
-
-  // Wait until |TestUIHandler| receives "ack" message from WebUI page.
-  base::test::ios::WaitUntilCondition(^{
-    base::RunLoop().RunUntilIdle();
-    return test_ui_handler()->IsFinReceived();
-  });
-}
-
-}  // namespace web