Introduce ContentSettingsClient interface

components/content_settings/core/browser/stub_content_settings_client.h

Index: components/content_settings/core/browser/stub_content_settings_client.h
diff --git a/components/content_settings/core/browser/stub_content_settings_client.h b/components/content_settings/core/browser/stub_content_settings_client.h
new file mode 100644
index 0000000000000000000000000000000000000000..346636f43107e4ab0d31c8db0802bd7f0784f4cc
--- /dev/null
+++ b/components/content_settings/core/browser/stub_content_settings_client.h
@@ -0,0 +1,59 @@
+// Copyright (c) 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 COMPONENTS_CONTENT_SETTINGS_CORE_BROWSER_STUB_CONTENT_SETTINGS_CLIENT_H_
+#define COMPONENTS_CONTENT_SETTINGS_CORE_BROWSER_STUB_CONTENT_SETTINGS_CLIENT_H_
+
+#include "components/content_settings/core/browser/content_settings_client.h"
+#include "components/content_settings/core/browser/stub_local_shared_objects_counter.h"
+
+namespace content_settings {
+
+// For test code only, to avoid the need to stub unneeded pure virtual methods
+// of ContentSettingsClient.
+class StubContentSettingsClient : public ContentSettingsClient {
+ public:
+  StubContentSettingsClient();
+  virtual ~StubContentSettingsClient();
+
+  // Stubbed methods of ContentSettingsClient.
+  virtual void OnCookiesRead(const GURL& url,
+                             const GURL& first_party_url,
+                             const net::CookieList& cookie_list,
+                             bool blocked_by_policy) override;
+
+  virtual void OnCookieChanged(const GURL& url,
+                               const GURL& first_party_url,
+                               const std::string& cookie_line,
+                               const net::CookieOptions& options,
+                               bool blocked_by_policy) override;
+
+  virtual void OnFileSystemAccessed(const GURL& url,
+                                    bool blocked_by_policy) override;
+
+  virtual void OnIndexedDBAccessed(const GURL& url,
+                                   const base::string16& description,
+                                   bool blocked_by_policy) override;
+
+  virtual void OnLocalStorageAccessed(const GURL& url,
+                                      bool local,
+                                      bool blocked_by_policy) override;
+
+  virtual void OnWebDatabaseAccessed(const GURL& url,
+                                     const base::string16& name,
+                                     const base::string16& display_name,
+                                     bool blocked_by_policy) override;
+
+  virtual const LocalSharedObjectsCounter& local_shared_objects(
+      AccessType type) const override;
+
+ private:
+  StubLocalSharedObjectsCounter counter_;
+
+  DISALLOW_COPY_AND_ASSIGN(StubContentSettingsClient);
+};
+
+}  // namespace content_settings
+
+#endif  // COMPONENTS_CONTENT_SETTINGS_CORE_BROWSER_STUB_CONTENT_SETTINGS_CLIENT_H_