Quota: Factor out (Mock)QuotaManagerProxy into its own file for readability

webkit/browser/quota/mock_quota_manager_proxy.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 "webkit/browser/quota/mock_quota_manager_proxy.h"
+
+#include "base/message_loop/message_loop.h"
+#include "base/single_thread_task_runner.h"
+#include "url/gurl.h"
+
+namespace quota {
+
+MockQuotaManagerProxy::MockQuotaManagerProxy(
+    MockQuotaManager* quota_manager,
+    base::SingleThreadTaskRunner* task_runner)
+    : QuotaManagerProxy(quota_manager, task_runner),
+      storage_accessed_count_(0),
+      storage_modified_count_(0),
+      last_notified_type_(kStorageTypeUnknown),
+      last_notified_delta_(0),
+      registered_client_(NULL) {}
+
+void MockQuotaManagerProxy::RegisterClient(QuotaClient* client) {
+  DCHECK(!registered_client_);
+  registered_client_ = client;
+}
+
+void MockQuotaManagerProxy::SimulateQuotaManagerDestroyed() {
+  if (registered_client_) {
+    // We cannot call this in the destructor as the client (indirectly)
+    // holds a refptr of the proxy.
+    registered_client_->OnQuotaManagerDestroyed();
+    registered_client_ = NULL;
+  }
+}
+
+void MockQuotaManagerProxy::NotifyStorageAccessed(
+    QuotaClient::ID client_id, const GURL& origin, StorageType type) {
+  ++storage_accessed_count_;
+  last_notified_origin_ = origin;
+  last_notified_type_ = type;
+}
+
+void MockQuotaManagerProxy::NotifyStorageModified(
+    QuotaClient::ID client_id, const GURL& origin,
+    StorageType type, int64 delta) {
+  ++storage_modified_count_;
+  last_notified_origin_ = origin;
+  last_notified_type_ = type;
+  last_notified_delta_ = delta;
+  if (mock_manager())
+    mock_manager()->UpdateUsage(origin, type, delta);
+}
+
+MockQuotaManagerProxy::~MockQuotaManagerProxy() {
+  DCHECK(!registered_client_);
+}
+
+}  // namespace quota