Revert of [tracing] Adding task information to heap profiler

base/trace_event/heap_profiler_type_name_deduplicator.cc

Index: base/trace_event/heap_profiler_type_name_deduplicator.cc
diff --git a/base/trace_event/heap_profiler_type_name_deduplicator.cc b/base/trace_event/heap_profiler_type_name_deduplicator.cc
index 055f86abf0adc15b5305659c94dc6866a192105a..e7f57c8ae0ebd853404eb3bfd2da792d8547b05a 100644
--- a/base/trace_event/heap_profiler_type_name_deduplicator.cc
+++ b/base/trace_event/heap_profiler_type_name_deduplicator.cc
@@ -15,33 +15,6 @@
 
 namespace base {
 namespace trace_event {
-
-namespace {
-
-// Extract directory name if |type_name| was file name. Otherwise, return
-// |type_name|.
-StringPiece ExtractDirNameFromFileName(const char* type_name) {
-  StringPiece result(type_name);
-  size_t last_seperator = result.find_last_of("\\/");
-
-  // If |type_name| was a not a file path, the seperator will not be found, so
-  // the whole type name is returned.
-  if (last_seperator == StringPiece::npos)
-    return result;
-
-  // Remove the file name from the path.
-  result.remove_suffix(result.length() - last_seperator);
-
-  // Remove the parent directory references.
-  const char kParentDirectory[] = "..";
-  const size_t kParentDirectoryLength = 3; // '../' or '..\'.
-  while (result.starts_with(kParentDirectory)) {
-    result.remove_prefix(kParentDirectoryLength);
-  }
-  return result;
-}
-
-}  // namespace
 
 TypeNameDeduplicator::TypeNameDeduplicator() {
   // A null pointer has type ID 0 ("unknown type");
@@ -80,13 +53,9 @@
     // a dictionary.
     SStringPrintf(&buffer, ",\"%d\":", it->second);
 
-    // TODO(ssid): crbug.com/594803 the type name is misused for file name in
-    // some cases.
-    StringPiece type_info = ExtractDirNameFromFileName(it->first);
-
     // |EscapeJSONString| appends, it does not overwrite |buffer|.
     bool put_in_quotes = true;
-    EscapeJSONString(type_info, put_in_quotes, &buffer);
+    EscapeJSONString(it->first, put_in_quotes, &buffer);
     out->append(buffer);
   }