Move DocumentSubresourceFilter to core/common.

components/subresource_filter/content/renderer/web_document_subresource_filter_impl.h

+// Copyright 2017 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_SUBRESOURCE_FILTER_CONTENT_RENDERER_WEB_DOCUMENT_SUBRESOURCE_FILTER_IMPL_H_
+#define COMPONENTS_SUBRESOURCE_FILTER_CONTENT_RENDERER_WEB_DOCUMENT_SUBRESOURCE_FILTER_IMPL_H_
+
+#include "base/callback.h"
+#include "base/macros.h"
+#include "base/memory/weak_ptr.h"
+#include "components/subresource_filter/core/common/document_subresource_filter.h"
+#include "third_party/WebKit/public/platform/WebDocumentSubresourceFilter.h"
+
+namespace subresource_filter {
+
+class MemoryMappedRuleset;
+
+// Performs filtering of subresource loads in the scope of a given document.
+class WebDocumentSubresourceFilterImpl
+    : public blink::WebDocumentSubresourceFilter,
+      public base::SupportsWeakPtr<WebDocumentSubresourceFilterImpl> {
+ public:
+  // See DocumentSubresourceFilter description.
+  //
+  // Invokes |first_disallowed_load_callback|, if it is non-null, on the first
+  // reportDisallowedLoad() call.
+  WebDocumentSubresourceFilterImpl(
+      url::Origin document_origin,
+      ActivationState activation_state,
+      scoped_refptr<const MemoryMappedRuleset> ruleset,
+      base::OnceClosure first_disallowed_load_callback);
+
+  ~WebDocumentSubresourceFilterImpl() override;
+
+  const DocumentSubresourceFilter& filter() const { return filter_; }
+
+  // blink::WebDocumentSubresourceFilter:
+  blink::WebDocumentSubresourceFilter::LoadPolicy getLoadPolicy(
+      const blink::WebURL& resourceUrl,
+      blink::WebURLRequest::RequestContext) override;
+  void reportDisallowedLoad() override;
+
+ private:
+  DocumentSubresourceFilter filter_;
+  base::OnceClosure first_disallowed_load_callback_;
+
+  DISALLOW_COPY_AND_ASSIGN(WebDocumentSubresourceFilterImpl);
+};
+
+}  // namespace subresource_filter
+
+#endif  // COMPONENTS_SUBRESOURCE_FILTER_CONTENT_RENDERER_WEB_DOCUMENT_SUBRESOURCE_FILTER_IMPL_H_