Adds browser test framework for the IME keyboard, and some basic typing tests.

chrome/browser/chromeos/extensions/input_view_browsertest.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 "ash/shell.h"
+#include "chrome/browser/chromeos/extensions/virtual_keyboard_browsertest.h"
+#include "chrome/browser/extensions/crx_installer.h"
+#include "chrome/browser/extensions/extension_service.h"
+#include "chrome/browser/extensions/extension_test_notification_observer.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/ui/browser.h"
+#include "chrome/test/base/ui_test_utils.h"
+#include "chromeos/ime/input_method_manager.h"
+#include "content/public/browser/render_view_host.h"
+#include "content/public/browser/site_instance.h"
+#include "content/public/browser/web_contents.h"
+#include "content/public/test/browser_test_utils.h"
+#include "extensions/common/constants.h"
+#include "extensions/common/extension.h"
+#include "extensions/common/file_util.h"
+#include "ui/aura/client/aura_constants.h"
+#include "ui/base/ime/input_method.h"
+
+namespace {
+
+const base::FilePath kBaseKeyboardTestFramework =
+    base::FilePath(FILE_PATH_LITERAL("test_base.js"));
+
+const base::FilePath kExtensionName =
+    base::FilePath(FILE_PATH_LITERAL("GoogleKeyboardInput-xkb.crx"));
+
+const base::FilePath kInputViewTestDir =
+    base::FilePath(FILE_PATH_LITERAL("chromeos/virtual_keyboard/inputview/"));
+}  // namespace
+
+class InputViewBrowserTest : public VirtualKeyboardBrowserTest {
+ public:
+  virtual base::FilePath GetTestDir() OVERRIDE { return kInputViewTestDir; }
+
+  virtual base::FilePath GetBaseFrameWork() OVERRIDE {
+    return kBaseKeyboardTestFramework;
+  }
+
+  // Installs the IME Extension keyboard |kExtensionName|.
+  void InstallIMEExtension() {
+    // Loads extension.
+    ExtensionService* service = browser()->profile()->GetExtensionService();
+    scoped_refptr<extensions::CrxInstaller> installer =
+        extensions::CrxInstaller::CreateSilent(service);
+    base::FilePath path =
+        ui_test_utils::GetTestFilePath(kInputViewTestDir, kExtensionName);
+    ExtensionTestNotificationObserver observer(browser());
+    observer.Watch(chrome::NOTIFICATION_CRX_INSTALLER_DONE,
+                   content::Source<extensions::CrxInstaller>(installer.get()));
+    installer->set_allow_silent_install(true);
+    installer->set_creation_flags(extensions::Extension::FROM_WEBSTORE);
+    installer->InstallCrx(path);
+    // Wait for CRX to be installed.
+    observer.Wait();
+    extensionId_ = installer->extension()->id();
+    ASSERT_TRUE(service->GetExtensionById(extensionId_, false));
+
+    // Register extension with IME.
+    chromeos::input_method::InputMethodManager* ime =
+        chromeos::input_method::InputMethodManager::Get();
+    ASSERT_TRUE(ime);
+    ime->ChangeInputMethod("_comp_ime_" + extensionId_ + "xkb:us::eng");

[Shu Chen, 2014/04/22 19:14:43]

I think you can do this here to get the input method id:
chromeos::extension_ime_util:GetComponentInputMethodID(extensionId_,
"xkb:us::eng");

[rsadam, 2014/04/22 20:28:20]

Done.

+    LOG(ERROR) << "Changed input method!";
+  }
+
+  virtual GURL GetURL() OVERRIDE {
+    return GURL("chrome-extension://" + GetKeyboardExtensionId() +
+                "/inputview.html");
+  }
+
+  virtual std::string GetKeyboardExtensionId() OVERRIDE { return extensionId_; }
+
+ private:
+  std::string extensionId_;
+};
+
+IN_PROC_BROWSER_TEST_F(InputViewBrowserTest, TypingTestTest) {
+  InstallIMEExtension();
+  RunTest(base::FilePath(FILE_PATH_LITERAL("typing_test.js")));
+}