Remove all remaining traces of MessageLoopProxy.

base/tracked_objects.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.
 
 #ifndef BASE_TRACKED_OBJECTS_H_
 #define BASE_TRACKED_OBJECTS_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 156 matching lines @@
 // not the underlying and ongoing statistic).  In contrast, pointer data that
 // is accessed during snapshotting is completely invariant, and hence is
 // perfectly acquired (i.e., no potential corruption, and no risk of a bad
 // memory reference).
 //
 // TODO(jar): We can implement a Snapshot system that *tries* to grab the
 // snapshots on the source threads *when* they have MessageLoops available
 // (worker threads don't have message loops generally, and hence gathering from
 // them will continue to be asynchronous).  We had an implementation of this in
 // the past, but the difficulty is dealing with message loops being terminated.
-// We can *try* to spam the available threads via some message loop proxy to
+// We can *try* to spam the available threads via some task runner to
 // achieve this feat, and it *might* be valuable when we are collecting data
 // for upload via UMA (where correctness of data may be more significant than
 // for a single screen of about:profiler).
 //
 // TODO(jar): We need to store DataCollections, and provide facilities for
 // taking the difference between two gathered DataCollections.  For now, we're
 // just adding a hack that Reset()s to zero all counts and stats.  This is also
 // done in a slightly thread-unsafe fashion, as the resetting is done
 // asynchronously relative to ongoing updates (but all data is 32 bit in size).
 // For basic profiling, this will work "most of the time," and should be
@@ skipping 623 matching lines @@
   ProcessDataSnapshot(const ProcessDataSnapshot& other);
   ~ProcessDataSnapshot();
 
   PhasedProcessDataSnapshotMap phased_snapshots;
   base::ProcessId process_id;
 };
 
 }  // namespace tracked_objects
 
 #endif  // BASE_TRACKED_OBJECTS_H_