Make PerTabPrefsTabHelper into PrefsTabHelper, move all prefs code into it.

chrome/browser/ui/tab_contents/per_tab_prefs_tab_helper_unittest.cc

-// Copyright (c) 2011 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/common/pref_names.h"
-#include "chrome/browser/prefs/pref_service.h"
-#include "chrome/browser/ui/tab_contents/per_tab_prefs_tab_helper.h"
-#include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
-#include "chrome/browser/ui/tab_contents/test_tab_contents_wrapper.h"
-#include "content/browser/tab_contents/test_tab_contents.h"
-#include "content/test/test_browser_thread.h"
-
-using content::BrowserThread;
-
-class TestPerTabPrefsTabHelper : public PerTabPrefsTabHelper {
- public:
-  explicit TestPerTabPrefsTabHelper(TabContentsWrapper* tab_contents)
-      : PerTabPrefsTabHelper(tab_contents),
-        was_override_web_prefernces_called_(false) {
-  }
-  virtual ~TestPerTabPrefsTabHelper() { }
-
-  virtual void OverrideWebPreferences(WebPreferences* prefs) OVERRIDE {
-    was_override_web_prefernces_called_ = true;
-    PerTabPrefsTabHelper::OverrideWebPreferences(prefs);
-  }
-
-  void NotifyRenderViewCreated() {
-    RenderViewCreated(NULL);
-  }
-
-  bool was_override_web_prefernces_called() {
-    return was_override_web_prefernces_called_;
-  }
-
- private:
-  bool was_override_web_prefernces_called_;
-};
-
-class PerTabPrefsTabHelperTest : public TabContentsWrapperTestHarness {
- public:
-  PerTabPrefsTabHelperTest()
-      : TabContentsWrapperTestHarness(),
-        ui_thread_(BrowserThread::UI, &message_loop_) {}
-
-  virtual ~PerTabPrefsTabHelperTest() {}
-
-  TabContentsWrapper* contents_wrapper2() {
-    return contents_wrapper2_.get();
-  }
-
-  void SetContents2(TestTabContents* contents) {
-    contents_wrapper2_.reset(
-        contents ? new TabContentsWrapper(contents) : NULL);
-  }
-
- protected:
-  virtual void SetUp() OVERRIDE {
-    TabContentsWrapperTestHarness::SetUp();
-    SetContents2(CreateTestTabContents());
-  }
-
-  virtual void TearDown() OVERRIDE {
-    contents_wrapper2_.reset();
-    TabContentsWrapperTestHarness::TearDown();
-  }
-
- private:
-  content::TestBrowserThread ui_thread_;
-  scoped_ptr<TabContentsWrapper> contents_wrapper2_;
-
-  DISALLOW_COPY_AND_ASSIGN(PerTabPrefsTabHelperTest);
-};
-
-TEST_F(PerTabPrefsTabHelperTest, PerTabJavaScriptEnabled) {
-  const char* key = prefs::kWebKitJavascriptEnabled;
-  PrefService* prefs1 = contents_wrapper()->per_tab_prefs_tab_helper()->prefs();
-  PrefService* prefs2 =
-      contents_wrapper2()->per_tab_prefs_tab_helper()->prefs();
-  const bool initial_value = prefs1->GetBoolean(key);
-  EXPECT_EQ(initial_value, prefs2->GetBoolean(key));
-
-  prefs1->SetBoolean(key, !initial_value);
-  EXPECT_EQ(!initial_value, prefs1->GetBoolean(key));
-  EXPECT_EQ(initial_value, prefs2->GetBoolean(key));
-
-  prefs1->SetBoolean(key, initial_value);
-  EXPECT_EQ(initial_value, prefs1->GetBoolean(key));
-  EXPECT_EQ(initial_value, prefs2->GetBoolean(key));
-
-  prefs2->SetBoolean(key, !initial_value);
-  EXPECT_EQ(initial_value, prefs1->GetBoolean(key));
-  EXPECT_EQ(!initial_value, prefs2->GetBoolean(key));
-}
-
-TEST_F(PerTabPrefsTabHelperTest, OverridePrefsOnViewCreation) {
-  TestPerTabPrefsTabHelper* test_prefs_helper = new TestPerTabPrefsTabHelper(
-      contents_wrapper());
-  contents_wrapper()->per_tab_prefs_tab_helper_.reset(test_prefs_helper);
-  EXPECT_FALSE(test_prefs_helper->was_override_web_prefernces_called());
-  test_prefs_helper->NotifyRenderViewCreated();
-  EXPECT_TRUE(test_prefs_helper->was_override_web_prefernces_called());
-}