Extend VideoCaptureDevice::Client::OnError() to have a tracked_objects::Location param.

media/capture/video/video_capture_device.h

 // Copyright (c) 2012 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.
 //
 // VideoCaptureDevice is the abstract base class for realizing video capture
 // device support in Chromium. It provides the interface for OS dependent
 // implementations.
 // The class is created and functions are invoked on a thread owned by
 // VideoCaptureManager. Capturing is done on other threads, depending on the OS
 // specific implementation.
 
 #ifndef MEDIA_VIDEO_CAPTURE_VIDEO_CAPTURE_DEVICE_H_
 #define MEDIA_VIDEO_CAPTURE_VIDEO_CAPTURE_DEVICE_H_
 
 #include <list>
 #include <string>
 
 #include "base/files/file.h"
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/single_thread_task_runner.h"
 #include "base/time/time.h"
 #include "media/base/media_export.h"
 #include "media/base/video_capture_types.h"
 #include "media/base/video_frame.h"
 #include "ui/gfx/gpu_memory_buffer.h"
 
+namespace tracked_objects {
+class Location;
+}  // namespace tracked_objects
+
 namespace media {
 
 class MEDIA_EXPORT VideoCaptureDevice {
  public:
   // Represents a capture device name and ID.
   // You should not create an instance of this class directly by e.g. setting
   // various properties directly.  Instead use
   // VideoCaptureDevice::GetDeviceNames to do this for you and if you need to
   // cache your own copy of a name, you can do so via the copy constructor.
   // The reason for this is that a device name might contain platform specific
@@ skipping 204 matching lines @@
         scoped_ptr<Buffer> buffer,
         const VideoCaptureFormat& frame_format,
         const base::TimeTicks& timestamp) = 0;
     virtual void OnIncomingCapturedVideoFrame(
         scoped_ptr<Buffer> buffer,
         const scoped_refptr<VideoFrame>& frame,
         const base::TimeTicks& timestamp) = 0;
 
     // An error has occurred that cannot be handled and VideoCaptureDevice must
     // be StopAndDeAllocate()-ed. |reason| is a text description of the error.
-    virtual void OnError(const std::string& reason) = 0;
+    virtual void OnError(const tracked_objects::Location& from_here,
+                         const std::string& reason) = 0;
 
     // VideoCaptureDevice requests the |message| to be logged.
     virtual void OnLog(const std::string& message) {}
 
     // Returns the current buffer pool utilization, in the range 0.0 (no buffers
     // are in use by producers or consumers) to 1.0 (all buffers are in use).
     virtual double GetBufferPoolUtilization() const = 0;
   };
 
   virtual ~VideoCaptureDevice();
@@ skipping 24 matching lines @@
 
  private:
   // Gets the power line frequency from the current system time zone if this is
   // defined, otherwise returns 0.
   PowerLineFrequency GetPowerLineFrequencyForLocation() const;
 };
 
 }  // namespace media
 
 #endif  // MEDIA_VIDEO_CAPTURE_VIDEO_CAPTURE_DEVICE_H_