| // Copyright 2015 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 CONTENT_PUBLIC_BROWSER_TRACING_DELEGATE_H_ |
| #define CONTENT_PUBLIC_BROWSER_TRACING_DELEGATE_H_ |
| |
| #include <memory> |
| #include <string> |
| |
| #include "base/callback.h" |
| #include "content/common/content_export.h" |
| |
| namespace base { |
| class DictionaryValue; |
| class Time; |
| } |
| |
| namespace net { |
| class URLRequestContextGetter; |
| } |
| |
| namespace content { |
| class BackgroundTracingConfig; |
| class TraceUploader; |
| |
| typedef base::Callback<bool(const std::string& metadata_name)> |
| MetadataFilterPredicate; |
| |
| // This can be implemented by the embedder to provide functionality for the |
| // about://tracing WebUI. |
| class CONTENT_EXPORT TracingDelegate { |
| public: |
| virtual ~TracingDelegate() {} |
| |
| // Provide trace uploading functionality; see trace_uploader.h. |
| virtual std::unique_ptr<TraceUploader> GetTraceUploader( |
| net::URLRequestContextGetter* request_context) = 0; |
| |
| // This can be used to veto a particular background tracing scenario. |
| virtual bool IsAllowedToBeginBackgroundScenario( |
| const BackgroundTracingConfig& config, |
| bool requires_anonymized_data); |
| |
| virtual bool IsAllowedToEndBackgroundScenario( |
| const content::BackgroundTracingConfig& config, |
| bool requires_anonymized_data); |
| |
| // Used to add any additional metadata to traces. |
| virtual void GenerateMetadataDict(base::DictionaryValue* metadata_dict) {} |
| |
| virtual MetadataFilterPredicate GetMetadataFilterPredicate(); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_PUBLIC_BROWSER_TRACING_DELEGATE_H_ |