[Refactoring] Extracted SpellCheckProfile from ProfileImpl.

chrome/browser/spellchecker/spellcheck_profile.cc

Index: chrome/browser/spellchecker/spellcheck_profile.cc
diff --git a/chrome/browser/spellchecker/spellcheck_profile.cc b/chrome/browser/spellchecker/spellcheck_profile.cc
new file mode 100644
index 0000000000000000000000000000000000000000..e29f14afb9fe1ef71ee8dcfa5c86225d922f63ab
--- /dev/null
+++ b/chrome/browser/spellchecker/spellcheck_profile.cc
@@ -0,0 +1,75 @@
+// 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/spellchecker/spellcheck_profile.h"
+
+#include "chrome/browser/prefs/pref_service.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/spellchecker/spellcheck_host.h"
+#include "chrome/browser/spellchecker/spellcheck_host_metrics.h"
+#include "chrome/common/pref_names.h"
+
+SpellCheckProfile::SpellCheckProfile()
+    : host_ready_(false) {
+}
+
+SpellCheckProfile::~SpellCheckProfile() {
+  if (host_.get())
+    host_->UnsetObserver();
+}
+
+SpellCheckHost* SpellCheckProfile::GetHost() {
+  return host_ready_ ? host_.get() : NULL;
+}
+
+SpellCheckProfile::ReinitializeResult SpellCheckProfile::ReinitializeHost(
+    bool force,
+    bool enable,
+    const std::string& language,
+    net::URLRequestContextGetter* request_context) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI) || IsTesting());
+  // If we are already loading the spellchecker, and this is just a hint to
+  // load the spellchecker, do nothing.
+  if (!force && host_.get())
+    return REINITIALIZE_DID_NOTHING;
+
+  host_ready_ = false;
+
+  bool host_deleted = false;
+  if (host_.get()) {
+    host_->UnsetObserver();
+    host_ = NULL;
+    host_deleted = true;
+  }
+
+  if (enable) {
+    // Retrieve the (perhaps updated recently) dictionary name from preferences.
+    host_ = CreateHost(this, language, request_context, metrics_.get());
+    return REINITIALIZE_CREATED_HOST;
+  }
+
+  return host_deleted ? REINITIALIZE_REMOVED_HOST : REINITIALIZE_DID_NOTHING;
+}
+
+SpellCheckHost* SpellCheckProfile::CreateHost(
+    SpellCheckHostObserver* observer,
+    const std::string& language,
+    net::URLRequestContextGetter* request_context,
+    SpellCheckHostMetrics* metrics) {
+  return SpellCheckHost::Create(
+      observer, language, request_context, metrics);
+}
+
+bool SpellCheckProfile::IsTesting() const {
+  return false;
+}
+
+void SpellCheckProfile::StartRecordingMetrics(bool spellcheck_enabled) {
+  metrics_.reset(new SpellCheckHostMetrics());
+  metrics_->RecordEnabledStats(spellcheck_enabled);
+}
+
+void SpellCheckProfile::SpellCheckHostInitialized() {
+  host_ready_ = !!host_.get() && host_->IsReady();
+}