Use chromium trace_event implementation in blink

third_party/WebKit/Source/platform/EventTracer.h

Index: third_party/WebKit/Source/platform/EventTracer.h
diff --git a/third_party/WebKit/Source/platform/EventTracer.h b/third_party/WebKit/Source/platform/EventTracer.h
deleted file mode 100644
index 2b1f9c14457071b36e4cb0d56a0bc046cd258a20..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/platform/EventTracer.h
+++ /dev/null
@@ -1,115 +0,0 @@
-/*
- * Copyright (C) 2011 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef EventTracer_h
-#define EventTracer_h
-
-#include "platform/PlatformExport.h"
-#include "wtf/Allocator.h"
-#include "wtf/text/WTFString.h"
-#include <memory>
-#include <stdint.h>
-
-namespace base {
-namespace trace_event {
-class ConvertableToTraceFormat;
-class TraceEventMemoryOverhead;
-}
-}
-
-// This will mark the trace event as disabled by default. The user will need
-// to explicitly enable the event.
-#define TRACE_DISABLED_BY_DEFAULT(name) "disabled-by-default-" name
-
-namespace blink {
-
-class TracedValue;
-
-namespace TraceEvent {
-typedef uint64_t TraceEventHandle;
-typedef intptr_t TraceEventAPIAtomicWord;
-} // namespace TraceEvent
-
-// FIXME: Make these global variables thread-safe. Make a value update atomic.
-PLATFORM_EXPORT extern TraceEvent::TraceEventAPIAtomicWord* traceSamplingState[3];
-
-class PLATFORM_EXPORT EventTracer {
-    STATIC_ONLY(EventTracer);
-public:
-    static void initialize();
-    static const unsigned char* getTraceCategoryEnabledFlag(const char*);
-    static TraceEvent::TraceEventHandle addTraceEvent(char phase,
-        const unsigned char* categoryEnabledFlag,
-        const char* name,
-        const char* scope,
-        unsigned long long id,
-        unsigned long long bindId,
-        double timestamp,
-        int numArgs,
-        const char* argNames[],
-        const unsigned char argTypes[],
-        const unsigned long long argValues[],
-        std::unique_ptr<TracedValue>,
-        std::unique_ptr<TracedValue>,
-        unsigned flags);
-    static TraceEvent::TraceEventHandle addTraceEvent(char phase,
-        const unsigned char* categoryEnabledFlag,
-        const char* name,
-        const char* scope,
-        unsigned long long id,
-        unsigned long long bindId,
-        double timestamp,
-        int numArgs,
-        const char* argNames[],
-        const unsigned char argTypes[],
-        const unsigned long long argValues[],
-        unsigned flags);
-    static void updateTraceEventDuration(const unsigned char* categoryEnabledFlag, const char* name, TraceEvent::TraceEventHandle);
-    static double systemTraceTime();
-
-private:
-    static TraceEvent::TraceEventHandle addTraceEvent(char phase,
-        const unsigned char* categoryEnabledFlag,
-        const char* name,
-        const char* scope,
-        unsigned long long id,
-        unsigned long long bindId,
-        double timestamp,
-        int numArgs,
-        const char* argNames[],
-        const unsigned char argTypes[],
-        const unsigned long long argValues[],
-        std::unique_ptr<base::trace_event::ConvertableToTraceFormat>* convertables,
-        unsigned flags);
-};
-
-} // namespace blink
-
-#endif // EventTracer_h