extensions: Introduce a fake ExtensionsClient implementation.

extensions/test/test_extensions_client.cc

+// 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.
+
+#include "extensions/test/test_extensions_client.h"
+
+#include "extensions/common/common_manifest_handlers.h"
+#include "extensions/common/features/base_feature_provider.h"
+#include "extensions/common/manifest_handler.h"
+#include "extensions/test/test_permission_message_provider.h"
+#include "extensions/test/test_permissions_provider.h"
+
+namespace extensions {
+
+TestExtensionsClient::TestExtensionsClient() {
+}
+
+TestExtensionsClient::~TestExtensionsClient() {
+}
+
+void TestExtensionsClient::Initialize() {
+  // Registration could already be finalized in unit tests, where the utility
+  // thread runs in-process.
+  if (!ManifestHandler::IsRegistrationFinalized()) {
+    RegisterCommonManifestHandlers();
+    ManifestHandler::FinalizeRegistration();
+  }
+}
+
+const PermissionsProvider&
+TestExtensionsClient::GetPermissionsProvider() const {
+  static TestPermissionsProvider provider;
+  return provider;
+}
+
+const PermissionMessageProvider&
+TestExtensionsClient::GetPermissionMessageProvider() const {
+  static TestPermissionMessageProvider provider;
+  return provider;
+}
+
+FeatureProvider* TestExtensionsClient::GetFeatureProviderByName(
+    const std::string& name) const {
+  return BaseFeatureProvider::GetByName(name);
+}
+
+void TestExtensionsClient::FilterHostPermissions(
+    const URLPatternSet& hosts,
+    URLPatternSet* new_hosts,
+    std::set<PermissionMessage>* messages) const {
+}
+
+void TestExtensionsClient::SetScriptingWhitelist(
+    const ExtensionsClient::ScriptingWhitelist& whitelist) {
+  scripting_whitelist_ = whitelist;
+}
+
+const ExtensionsClient::ScriptingWhitelist&
+TestExtensionsClient::GetScriptingWhitelist() const {
+  return scripting_whitelist_;
+}
+
+URLPatternSet TestExtensionsClient::GetPermittedChromeSchemeHosts(
+    const Extension* extension,
+    const APIPermissionSet& api_permissions) const {
+  URLPatternSet hosts;
+  return hosts;

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

nit: Can this be "return URLPatternSet();"?

+}
+
+bool TestExtensionsClient::IsScriptableURL(const GURL& url,
+                                           std::string* error) const {
+  return true;
+}
+
+bool TestExtensionsClient::IsAPISchemaGenerated(
+    const std::string& name) const {
+  return false;
+}
+
+base::StringPiece TestExtensionsClient::GetAPISchema(
+    const std::string& name) const {
+  return base::StringPiece();
+}
+
+void TestExtensionsClient::AddExtraFeatureFilters(
+    SimpleFeature* feature) const {
+}
+
+}  // namespace extensions