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Unified Diff: chrome/browser/content_settings/content_settings_override_provider.h

Issue 542253003: Add a global on/off switch for content settings and expose a toggle on the Website Settings options… (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@global-settings
Patch Set: Forgot UsedContentSettingsProviders(). Created 6 years, 3 months ago
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Index: chrome/browser/content_settings/content_settings_override_provider.h
diff --git a/chrome/browser/content_settings/content_settings_override_provider.h b/chrome/browser/content_settings/content_settings_override_provider.h
new file mode 100644
index 0000000000000000000000000000000000000000..fab5b0bdbf38fce9a2b25695dd4e2179a9e91b9a
--- /dev/null
+++ b/chrome/browser/content_settings/content_settings_override_provider.h
@@ -0,0 +1,80 @@
+// Copyright 2014 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.
+
+#ifndef CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_OVERRIDE_PROVIDER_H_
+#define CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_OVERRIDE_PROVIDER_H_
+
+#include <map>
+
+#include "base/macros.h"
+#include "base/memory/linked_ptr.h"
+#include "base/synchronization/lock.h"
+#include "chrome/browser/content_settings/content_settings_provider.h"
+#include "components/content_settings/core/common/content_settings_types.h"
+
+class ContentSettingsPattern;
+class PrefService;
+
+namespace user_prefs {
+class PrefRegistrySyncable;
+}
+
+namespace content_settings {
+
+// OverrideProvider contains if certain content settings are enabled or
+// globally disabled.
+class OverrideProvider : public ProviderInterface {
+ public:
+ static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
+
+ OverrideProvider(PrefService* prefs, bool incognito);
+ virtual ~OverrideProvider();
+
+ // ProviderInterface implementations.
+ virtual RuleIterator* GetRuleIterator(
+ ContentSettingsType content_type,
+ const ResourceIdentifier& resource_identifier,
+ bool incognito) const OVERRIDE;
+
+ virtual void ClearAllContentSettingsRules(
+ ContentSettingsType content_type) OVERRIDE;
+
+ virtual bool SetWebsiteSetting(
+ const ContentSettingsPattern& primary_pattern,
+ const ContentSettingsPattern& secondary_pattern,
+ ContentSettingsType content_type,
+ const ResourceIdentifier& resource_identifier,
+ base::Value* value) OVERRIDE;
+
+ virtual void ShutdownOnUIThread() OVERRIDE;
+
+ // Returns if |content_type| is enabled. If it is not enabled, the content
+ // setting type is considered globally disabled and acts as though it is
+ // blocked. If it is enabled, the content setting type's permission is granted
+ // by the other providers.
+ bool IsEnabled(ContentSettingsType content_type) const;
+
+ private:
+ // Reads the override settings from the preferences service.
+ void ReadOverrideSettings();
+
+ // Copies of the pref data, so that we can read it on the IO thread.
+ typedef linked_ptr<base::Value> ValuePtr;
+ typedef std::map<ContentSettingsType, ValuePtr> ValueMap;
Bernhard Bauer 2014/09/11 16:49:56 If this provider is only used to turn content type
Daniel Nishi 2014/09/11 20:58:12 Done.
+ ValueMap override_settings_;
+
+ PrefService* prefs_;
+
+ bool is_incognito_;
+
+ // Used around accesses to the |override_content_settings_| object to
+ // guarantee thread safety.
+ mutable base::Lock lock_;
+
+ DISALLOW_COPY_AND_ASSIGN(OverrideProvider);
+};
+
+} // namespace content_settings
+
+#endif // CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_OVERRIDE_PROVIDER_H_

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