Create CoreTabHelper, move remaining core TCW functionality into it.

chrome/browser/safe_browsing/safe_browsing_tab_observer.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/browser/safe_browsing/safe_browsing_tab_observer.h"
+
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/prefs/pref_service.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/safe_browsing/client_side_detection_host.h"
+#include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
+#include "chrome/common/chrome_notification_types.h"
+#include "chrome/common/pref_names.h"
+#include "chrome/common/render_messages.h"
+#include "content/browser/renderer_host/render_view_host.h"
+#include "content/public/browser/notification_details.h"
+#include "content/public/browser/notification_source.h"
+
+namespace safe_browsing {
+
+SafeBrowsingTabObserver::SafeBrowsingTabObserver(
+    TabContentsWrapper* wrapper) : wrapper_(wrapper) {
+#if defined(ENABLE_SAFE_BROWSING)
+  PrefService* prefs = wrapper_->profile()->GetPrefs();
+  if (prefs) {
+    pref_change_registrar_.Init(prefs);
+    pref_change_registrar_.Add(prefs::kSafeBrowsingEnabled, this);
+
+    if (prefs->GetBoolean(prefs::kSafeBrowsingEnabled) &&
+        g_browser_process->safe_browsing_detection_service()) {
+      safebrowsing_detection_host_.reset(
+          ClientSideDetectionHost::Create(wrapper_->tab_contents()));
+    }
+  }
+#endif
+}
+
+SafeBrowsingTabObserver::~SafeBrowsingTabObserver() {
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// content::NotificationObserver overrides
+
+void SafeBrowsingTabObserver::Observe(
+    int type,
+    const content::NotificationSource& source,
+    const content::NotificationDetails& details) {
+  switch (type) {
+    case chrome::NOTIFICATION_PREF_CHANGED: {
+      std::string* pref_name = content::Details<std::string>(details).ptr();
+      DCHECK(content::Source<PrefService>(source).ptr() ==
+             wrapper_->profile()->GetPrefs());
+      if (*pref_name == prefs::kSafeBrowsingEnabled) {
+        UpdateSafebrowsingDetectionHost();
+      } else {
+        NOTREACHED() << "unexpected pref change notification" << *pref_name;
+      }
+      break;
+    }
+    default:
+      NOTREACHED();
+  }
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Internal helpers
+
+void SafeBrowsingTabObserver::UpdateSafebrowsingDetectionHost() {
+#if defined(ENABLE_SAFE_BROWSING)
+  PrefService* prefs = wrapper_->profile()->GetPrefs();
+  bool safe_browsing = prefs->GetBoolean(prefs::kSafeBrowsingEnabled);
+  if (safe_browsing &&
+      g_browser_process->safe_browsing_detection_service()) {
+    if (!safebrowsing_detection_host_.get()) {
+      safebrowsing_detection_host_.reset(
+          ClientSideDetectionHost::Create(wrapper_->tab_contents()));
+    }
+  } else {
+    safebrowsing_detection_host_.reset();
+  }
+
+  RenderViewHost* rvh = wrapper_->tab_contents()->render_view_host();
+  rvh->Send(new ChromeViewMsg_SetClientSidePhishingDetection(rvh->routing_id(),
+                                                             safe_browsing));
+#endif
+}
+
+}  // namespace safe_browsing