Refactor code listening to platform events in content/renderer/.

content/shell/renderer/test_runner/test_interfaces.cc

 // Copyright 2014 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 "content/shell/renderer/test_runner/test_interfaces.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/strings/stringprintf.h"
 #include "content/shell/common/shell_switches.h"
 #include "content/shell/renderer/test_runner/accessibility_controller.h"
 #include "content/shell/renderer/test_runner/event_sender.h"
 #include "content/shell/renderer/test_runner/gamepad_controller.h"
 #include "content/shell/renderer/test_runner/test_runner.h"
 #include "content/shell/renderer/test_runner/text_input_controller.h"
 #include "content/shell/renderer/test_runner/web_test_proxy.h"
 #include "third_party/WebKit/public/platform/WebURL.h"
 #include "third_party/WebKit/public/web/WebCache.h"
 #include "third_party/WebKit/public/web/WebKit.h"
 #include "third_party/WebKit/public/web/WebView.h"
 
 namespace content {
 
 TestInterfaces::TestInterfaces()
     : accessibility_controller_(new AccessibilityController()),
       event_sender_(new EventSender(this)),
-      gamepad_controller_(new GamepadController()),
       text_input_controller_(new TextInputController()),
       test_runner_(new TestRunner(this)),
       delegate_(0) {
   blink::setLayoutTestMode(true);
   if (CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kEnableFontAntialiasing))
     blink::setFontAntialiasingEnabledForTest(true);
 
   // NOTE: please don't put feature specific enable flags here,
   // instead add them to RuntimeEnabledFeatures.in
 
   ResetAll();
 }
 
 TestInterfaces::~TestInterfaces() {
   accessibility_controller_->SetWebView(0);
   event_sender_->SetWebView(0);
   // gamepad_controller_ doesn't depend on WebView.
   text_input_controller_->SetWebView(NULL);
   test_runner_->SetWebView(0, 0);
 
   accessibility_controller_->SetDelegate(0);
   event_sender_->SetDelegate(0);
-  gamepad_controller_->SetDelegate(0);
+  // gamepad_controller_ ignores SetDelegate(0)
   // text_input_controller_ doesn't depend on WebTestDelegate.
   test_runner_->SetDelegate(0);
 }
 
 void TestInterfaces::SetWebView(blink::WebView* web_view,
                                 WebTestProxyBase* proxy) {
   proxy_ = proxy;
   accessibility_controller_->SetWebView(web_view);
   event_sender_->SetWebView(web_view);
   // gamepad_controller_ doesn't depend on WebView.
   text_input_controller_->SetWebView(web_view);
   test_runner_->SetWebView(web_view, proxy);
 }
 
 void TestInterfaces::SetDelegate(WebTestDelegate* delegate) {
   accessibility_controller_->SetDelegate(delegate);
   event_sender_->SetDelegate(delegate);
-  gamepad_controller_->SetDelegate(delegate);
+  gamepad_controller_ = GamepadController::Create(delegate);
   // text_input_controller_ doesn't depend on WebTestDelegate.
   test_runner_->SetDelegate(delegate);
   delegate_ = delegate;
 }
 
 void TestInterfaces::BindTo(blink::WebFrame* frame) {
   accessibility_controller_->Install(frame);
   event_sender_->Install(frame);
-  gamepad_controller_->Install(frame);
+  if (gamepad_controller_)
+    gamepad_controller_->Install(frame);
   text_input_controller_->Install(frame);
   test_runner_->Install(frame);
 }
 
 void TestInterfaces::ResetTestHelperControllers() {
   accessibility_controller_->Reset();
   event_sender_->Reset();
-  gamepad_controller_->Reset();
+  if (gamepad_controller_)
+    gamepad_controller_->Reset();
   // text_input_controller_ doesn't have any state to reset.
   blink::WebCache::clear();
 }
 
 void TestInterfaces::ResetAll() {
   ResetTestHelperControllers();
   test_runner_->Reset();
 }
 
 void TestInterfaces::SetTestIsRunning(bool running) {
@@ skipping 76 matching lines @@
   if (!theme_engine_.get())
     theme_engine_.reset(new MockWebThemeEngineMac());
 #else
   if (!theme_engine_.get())
     theme_engine_.reset(new MockWebThemeEngine());
 #endif
   return theme_engine_.get();
 }
 
 }  // namespace content