[ios] Extracted web_test.h classes into separate files.

ios/web/public/test/web_test_with_web_state.h

-// Copyright 2014 The Chromium Authors. All rights reserved.
+// 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.
 
-#ifndef IOS_WEB_TEST_WEB_TEST_H_
-#define IOS_WEB_TEST_WEB_TEST_H_
+#ifndef IOS_WEB_PUBLIC_TEST_WEB_TEST_WITH_WEB_STATE_H_
+#define IOS_WEB_PUBLIC_TEST_WEB_TEST_WITH_WEB_STATE_H_
 
-#import <UIKit/UIKit.h>
+#include "base/ios/block_types.h"
+#import "base/ios/weak_nsobject.h"
+#include "base/message_loop/message_loop.h"
+#include "ios/web/public/test/web_test.h"
+#include "url/gurl.h"
 
-#import "base/ios/block_types.h"
-#import "base/ios/weak_nsobject.h"
-#import "base/mac/scoped_nsobject.h"
-#include "base/message_loop/message_loop.h"
-#include "ios/web/public/test/scoped_testing_web_client.h"
-#include "ios/web/public/test/test_browser_state.h"
-#import "ios/web/public/test/test_web_client.h"
-#include "ios/web/public/test/test_web_thread_bundle.h"
-#include "ios/web/public/web_client.h"
-#import "ios/web/web_state/ui/crw_web_controller.h"
-#include "testing/platform_test.h"
+@class CRWWebController;
 
 namespace web {
 
-// A test fixture for web tests that need a minimum environment set up that
-// mimics a web embedder.
-class WebTest : public PlatformTest {
+class WebState;
+
+// Base test fixture that provides WebState for testing.
+class WebTestWithWebState : public WebTest,
+                            public base::MessageLoop::TaskObserver {
  protected:
-  WebTest();
-  ~WebTest() override;
+  WebTestWithWebState();
+  ~WebTestWithWebState() override;
 
-  // PlatformTest methods.
+  // WebTest overrides.
   void SetUp() override;
   void TearDown() override;
 
-  // Returns the WebClient that is used for testing.
-  TestWebClient* GetWebClient();
+  // base::MessageLoop::TaskObserver overrides.
+  void WillProcessTask(const base::PendingTask& pending_task) override;
+  void DidProcessTask(const base::PendingTask& pending_task) override;
 
-  // Returns the BrowserState that is used for testing.
-  virtual BrowserState* GetBrowserState();
-
- private:
-  // The WebClient used in tests.
-  ScopedTestingWebClient web_client_;
-  // The threads used for testing.
-  web::TestWebThreadBundle thread_bundle_;
-  // The browser state used in tests.
-  TestBrowserState browser_state_;
-};
-
-#pragma mark -
-
-// An abstract test fixture that sets up a WebControllers that can be loaded
-// with test HTML and JavaScripts.
-class WebTestWithWebController : public WebTest,
-                                 public base::MessageLoop::TaskObserver {
- public:
-  ~WebTestWithWebController() override;
-
- protected:
-  WebTestWithWebController();
-  void SetUp() override;
-  void TearDown() override;
   // Loads the specified HTML content into the WebController via public APIs.
   void LoadHtml(NSString* html);
   // Loads the specified HTML content into the WebController via public APIs.
   void LoadHtml(const std::string& html);
   // Loads |url| into the WebController via public APIs.
   // Note if anyone uses this to load web pages from the live internet, the
   // tests can be flaky / dependent on content and behavior beyond our control.
   // Use this only when it's impossible to test with static HTML using LoadHtml.
   void LoadURL(const GURL& url);
   // Blocks until both known NSRunLoop-based and known message-loop-based
   // background tasks have completed
   void WaitForBackgroundTasks();
   // Blocks until known NSRunLoop-based have completed, known message-loop-based
   // background tasks have completed and |condition| evaluates to true.
   void WaitForCondition(ConditionBlock condition);
   // Evaluates JavaScript and returns result as a string.
   // DEPRECATED. TODO(crbug.com/595761): Remove this API.
   NSString* EvaluateJavaScriptAsString(NSString* script);
   // Synchronously executes JavaScript and returns result as id.
   id ExecuteJavaScript(NSString* script);
-  // TaskObserver methods (used when waiting for background tasks).
-  void WillProcessTask(const base::PendingTask& pending_task) override;
-  void DidProcessTask(const base::PendingTask& pending_task) override;
 
   // Returns web state for this web controller.
   web::WebState* web_state();
   const web::WebState* web_state() const;
 
   // The web controller for testing.
+  // TODO(crbug.com/619076): Remove this ivar.
   base::WeakNSObject<CRWWebController> webController_;
   // true if a task has been processed.
   bool processed_a_task_;
 
  private:
   // LoadURL() for data URLs sometimes lock up navigation, so if the loaded page
   // is not the one expected, reset the web view. In some cases, document or
   // document.body does not exist either; also reset in those cases.
   // Returns true if a reset occurred. One may want to load the page again.
   bool ResetPageIfNavigationStalled(NSString* load_check);
   // Creates a unique HTML element to look for in
   // ResetPageIfNavigationStalled().
   NSString* CreateLoadCheck();
   // The web state for testing.
-  std::unique_ptr<WebStateImpl> web_state_impl_;
+  std::unique_ptr<WebState> web_state_;
 };
 
 }  // namespace web
 
-#endif  // IOS_WEB_TEST_WEB_TEST_H_
+#endif  // IOS_WEB_PUBLIC_TEST_WEB_TEST_WITH_WEB_STATE_H_