Make WebTraceLocation be an alias of tracked_objects::Location

third_party/WebKit/public/platform/WebTraceLocation.h

 // 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.
 
 #ifndef WebTraceLocation_h
 #define WebTraceLocation_h
 
 #include "WebCommon.h"
 
 namespace blink {
 
 // This class is used to keep track of where posted tasks originate. See base/location.h in Chromium.
 // Currently only store the bits used in Blink, base::Location stores more.
 class BLINK_PLATFORM_EXPORT WebTraceLocation {
 public:
     // These char*s are not copied and must live for the duration of the program.
-    WebTraceLocation(const char* function, const char* file);
+    WebTraceLocation(const char* function, const char* file, int lineNumber, const void* programCounter);
     WebTraceLocation();
+    static const void* getProgramCounter();
 
     const char* functionName() const;
     const char* fileName() const;
+    int lineNumber() const;
+    const void* programCounter() const;
 
 private:
     const char* m_functionName;
     const char* m_fileName;
+    int m_lineNumber;
+    const void* m_programCounter;
 };
 
-#define BLINK_FROM_HERE ::blink::WebTraceLocation(__FUNCTION__, __FILE__)
+#define BLINK_FROM_HERE ::blink::WebTraceLocation(__FUNCTION__, __FILE__, __LINE__, ::blink::WebTraceLocation::getProgramCounter())

[kinuko, 2016/07/14 05:51:14]

Can't we just call tracked_objects::GetProgramCounter()?

[tzik, 2016/07/14 07:51:06]

I think I don't understand our latest layering policy...
+esprehn. Can we use //base in public/platform header?

[alex clarke (OOO till 29th), 2016/07/14 10:20:48]

IMO It seems like it would be a good idea to try and use FROM_HERE if possible.

 
 }
 
 #endif // WebTraceLocation_h