Introduce per-tab preferences service.

content/browser/tab_contents/tab_contents.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 "content/browser/tab_contents/tab_contents.h"
 
 #include <cmath>
 
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
 #include "base/metrics/stats_counters.h"
 #include "base/string16.h"
 #include "base/string_util.h"
 #include "base/time.h"
 #include "base/utf_string_conversions.h"
+#include "chrome/browser/prefs/pref_service.h"
+#include "chrome/browser/profiles/profile.h"
 #include "content/browser/browser_context.h"
 #include "content/browser/child_process_security_policy.h"
 #include "content/browser/debugger/devtools_manager.h"
 #include "content/browser/download/download_manager.h"
 #include "content/browser/download/download_stats.h"
 #include "content/browser/host_zoom_map.h"
 #include "content/browser/in_process_webkit/session_storage_namespace.h"
 #include "content/browser/load_from_memory_cache_details.h"
 #include "content/browser/load_notification_details.h"
 #include "content/browser/renderer_host/render_process_host.h"
@@ skipping 169 matching lines @@
 #endif
       is_showing_before_unload_dialog_(false),
       opener_web_ui_type_(WebUI::kNoWebUI),
       closed_by_user_gesture_(false),
       minimum_zoom_percent_(
           static_cast<int>(WebKit::WebView::minTextSizeMultiplier * 100)),
       maximum_zoom_percent_(
           static_cast<int>(WebKit::WebView::maxTextSizeMultiplier * 100)),
       temporary_zoom_settings_(false),
       content_restrictions_(0),
-      view_type_(content::VIEW_TYPE_TAB_CONTENTS) {
+      view_type_(content::VIEW_TYPE_TAB_CONTENTS),
+      per_tab_prefs_(
+          Profile::FromBrowserContext(browser_context)->
+          GetPrefs()->CreatePrefServiceWithPerTabPrefStore()) {
 
   render_manager_.Init(browser_context, site_instance, routing_id);
 
   // We have the initial size of the view be based on the size of the passed in
   // tab contents (normally a tab from the same window).
   view_->CreateView(base_tab_contents ?
       base_tab_contents->view()->GetContainerSize() : gfx::Size());
 
 #if defined(ENABLE_JAVA_BRIDGE)
   java_bridge_dispatcher_host_manager_.reset(
@@ skipping 1613 matching lines @@
        GetURL().spec() != chrome::kAboutBlankURL)) &&
       !web_prefs.allow_webui_compositing) {
     web_prefs.accelerated_compositing_enabled = false;
     web_prefs.accelerated_2d_canvas_enabled = false;
   }
 
 #if defined(TOUCH_UI)
   web_prefs.force_compositing_mode = true;
 #endif
 
+  // TODO: Apply overrides from per_tab_prefs_ here.
+
   return web_prefs;
 }
 
 void TabContents::OnUserGesture() {
   // Notify observers.
   FOR_EACH_OBSERVER(TabContentsObserver, observers_, DidGetUserGesture());
 
   ResourceDispatcherHost* rdh =
       content::GetContentClient()->browser()->GetResourceDispatcherHost();
   if (rdh)  // NULL in unittests.
@@ skipping 166 matching lines @@
 
 void TabContents::CreateViewAndSetSizeForRVH(RenderViewHost* rvh) {
   RenderWidgetHostView* rwh_view = view()->CreateViewForWidget(rvh);
   rwh_view->SetSize(view()->GetContainerSize());
 }
 
 bool TabContents::GotResponseToLockMouseRequest(bool allowed) {
   return render_view_host() ?
       render_view_host()->GotResponseToLockMouseRequest(allowed) : false;
 }