extensions: Introduce a fake ExtensionsClient implementation.

extensions/test/test_extensions_client.h

+// 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 EXTENSIONS_TEST_TEST_EXTENSIONS_CLIENT_H_
+#define EXTENSIONS_TEST_TEST_EXTENSIONS_CLIENT_H_
+
+#include "base/macros.h"
+#include "extensions/common/extensions_client.h"
+
+namespace extensions {
+
+class TestExtensionsClient : public ExtensionsClient {
+ public:
+  TestExtensionsClient();
+  virtual ~TestExtensionsClient();
+
+ private:
+  virtual void Initialize() OVERRIDE;

[James Cook, 2014/04/11 16:26:49]

nit: maybe "ExtensionsClient implementation" above this line?

+  virtual const PermissionsProvider& GetPermissionsProvider() const OVERRIDE;
+  virtual const PermissionMessageProvider& GetPermissionMessageProvider() const
+      OVERRIDE;
+  virtual FeatureProvider* GetFeatureProviderByName(
+      const std::string& name) const OVERRIDE;
+  virtual void FilterHostPermissions(
+      const URLPatternSet& hosts,
+      URLPatternSet* new_hosts,
+      std::set<PermissionMessage>* messages) const OVERRIDE;
+  virtual void SetScriptingWhitelist(
+      const ScriptingWhitelist& whitelist) OVERRIDE;
+  virtual const ScriptingWhitelist& GetScriptingWhitelist() const OVERRIDE;
+  virtual URLPatternSet GetPermittedChromeSchemeHosts(
+      const Extension* extension,
+      const APIPermissionSet& api_permissions) const OVERRIDE;
+  virtual bool IsScriptableURL(const GURL& url,
+                               std::string* error) const OVERRIDE;
+  virtual bool IsAPISchemaGenerated(const std::string& name) const OVERRIDE;
+  virtual base::StringPiece GetAPISchema(
+      const std::string& name) const OVERRIDE;
+  virtual void AddExtraFeatureFilters(SimpleFeature* feature) const OVERRIDE;
+
+  // A whitelist of extensions that can script anywhere. Do not add to this
+  // list (except in tests) without consulting the Extensions team first.
+  // Note: Component extensions have this right implicitly and do not need to be
+  // added to this list.
+  ScriptingWhitelist scripting_whitelist_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestExtensionsClient);
+};
+
+}  // namespace extensions
+
+#endif  // EXTENSIONS_TEST_TEST_EXTENSIONS_CLIENT_H_