Move LanguageState to the translate component

components/translate/core/browser/language_state_unittest.cc

 // Copyright 2013 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 "chrome/browser/tab_contents/language_state.h"
+#include "components/translate/core/browser/language_state.h"
 
 #include "base/memory/scoped_ptr.h"
-#include "chrome/browser/tab_contents/language_state_observer.h"
-#include "chrome/browser/ui/tabs/tab_strip_model.h"
-#include "chrome/test/base/browser_with_test_window_test.h"
-#include "content/public/browser/web_contents.h"
+#include "components/translate/core/browser/translate_client.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace {
 
-class MockLanguageStateObserver : public LanguageStateObserver {
+class MockTranslateClient : public TranslateClient {
  public:
-  MockLanguageStateObserver()
+  MockTranslateClient()
       : on_is_page_translated_changed_called_(false),
         on_translate_enabled_changed_called_(false) {
   }
 
-  virtual ~MockLanguageStateObserver() {}
+  void Reset() {
+    on_is_page_translated_changed_called_ = false;
+    on_translate_enabled_changed_called_ = false;
+  }
 
-  virtual void OnIsPageTranslatedChanged(
-      content::WebContents* source) OVERRIDE {
+  virtual ~MockTranslateClient() {}
+
+  virtual void OnIsPageTranslatedChanged() OVERRIDE {
     on_is_page_translated_changed_called_ = true;
   }
 
-  virtual void OnTranslateEnabledChanged(
-      content::WebContents* source) OVERRIDE {
+  virtual void OnTranslateEnabledChanged() OVERRIDE {
     on_translate_enabled_changed_called_ = true;
   }
 
+  virtual bool IsLinkNavigation() OVERRIDE {
+    return false;
+  }
+
   bool on_is_page_translated_changed_called() const {
     return on_is_page_translated_changed_called_;
   }
 
   bool on_translate_enabled_changed_called() const {
     return on_translate_enabled_changed_called_;
   }
 
  private:
   bool on_is_page_translated_changed_called_;
   bool on_translate_enabled_changed_called_;
 
-  DISALLOW_COPY_AND_ASSIGN(MockLanguageStateObserver);
+  DISALLOW_COPY_AND_ASSIGN(MockTranslateClient);
 };
 
 }  // namespace
 
-typedef BrowserWithTestWindowTest LanguageStateTest;
-
-TEST_F(LanguageStateTest, IsPageTranslated) {
-  LanguageState language_state(NULL);
+TEST(LanguageStateTest, IsPageTranslated) {
+  scoped_ptr<MockTranslateClient> client(
+      new MockTranslateClient);
+  LanguageState language_state(client.get());
   EXPECT_FALSE(language_state.IsPageTranslated());
 
   // Navigate to a French page.
   language_state.LanguageDetermined("fr", true);
   EXPECT_EQ("fr", language_state.original_language());
   EXPECT_EQ("fr", language_state.current_language());
   EXPECT_FALSE(language_state.IsPageTranslated());
 
   // Translate the page into English.
   language_state.SetCurrentLanguage("en");
   EXPECT_EQ("fr", language_state.original_language());
   EXPECT_EQ("en", language_state.current_language());
   EXPECT_TRUE(language_state.IsPageTranslated());
 
   // Move on another page in Japanese.
   language_state.LanguageDetermined("ja", true);
   EXPECT_EQ("ja", language_state.original_language());
   EXPECT_EQ("ja", language_state.current_language());
   EXPECT_FALSE(language_state.IsPageTranslated());
 }
 
-TEST_F(LanguageStateTest, Observer) {
-  GURL url("http://foo/");
-  AddTab(browser(), url);
-  content::NavigationController& navigation_controller =
-      browser()->tab_strip_model()->GetWebContentsAt(0)->GetController();
+TEST(LanguageStateTest, Client) {
 
-  scoped_ptr<MockLanguageStateObserver> observer(
-      new MockLanguageStateObserver);
-  LanguageState language_state(&navigation_controller);
-  language_state.set_observer(observer.get());
+  scoped_ptr<MockTranslateClient> client(
+      new MockTranslateClient);
+  LanguageState language_state(client.get());
 
   // Enable/Disable translate.
   EXPECT_FALSE(language_state.translate_enabled());
-  EXPECT_FALSE(observer->on_translate_enabled_changed_called());
+  EXPECT_FALSE(client->on_translate_enabled_changed_called());
   language_state.SetTranslateEnabled(true);
   EXPECT_TRUE(language_state.translate_enabled());
-  EXPECT_TRUE(observer->on_translate_enabled_changed_called());
+  EXPECT_TRUE(client->on_translate_enabled_changed_called());
 
-  observer.reset(new MockLanguageStateObserver);
-  language_state.set_observer(observer.get());
+  client->Reset();
   language_state.SetTranslateEnabled(false);
   EXPECT_FALSE(language_state.translate_enabled());
-  EXPECT_TRUE(observer->on_translate_enabled_changed_called());
+  EXPECT_TRUE(client->on_translate_enabled_changed_called());
 
   // Navigate to a French page.
-  observer.reset(new MockLanguageStateObserver);
-  language_state.set_observer(observer.get());
+  client->Reset();
   language_state.LanguageDetermined("fr", true);
   EXPECT_FALSE(language_state.translate_enabled());
-  EXPECT_FALSE(observer->on_is_page_translated_changed_called());
-  EXPECT_FALSE(observer->on_translate_enabled_changed_called());
+  EXPECT_FALSE(client->on_is_page_translated_changed_called());
+  EXPECT_FALSE(client->on_translate_enabled_changed_called());
 
   // Translate.
   language_state.SetCurrentLanguage("en");
   EXPECT_TRUE(language_state.IsPageTranslated());
-  EXPECT_TRUE(observer->on_is_page_translated_changed_called());
+  EXPECT_TRUE(client->on_is_page_translated_changed_called());
 
   // Translate feature must be enabled after an actual translation.
   EXPECT_TRUE(language_state.translate_enabled());
-  EXPECT_TRUE(observer->on_translate_enabled_changed_called());
+  EXPECT_TRUE(client->on_translate_enabled_changed_called());
 }