linux: TCMalloc-based C++ heap profiler.

webkit/tools/test_shell/test_shell_main.cc

Index: webkit/tools/test_shell/test_shell_main.cc
diff --git a/webkit/tools/test_shell/test_shell_main.cc b/webkit/tools/test_shell/test_shell_main.cc
index b069b2f018b6469fd9bce681422448efb6efe334..ea2d6259463f04e9f6b6d9624686dc374b73f521 100644
--- a/webkit/tools/test_shell/test_shell_main.cc
+++ b/webkit/tools/test_shell/test_shell_main.cc
@@ -29,6 +29,7 @@
 #include "webkit/glue/webkit_glue.h"
 #include "webkit/glue/window_open_disposition.h"
 #include "webkit/extensions/v8/gc_extension.h"
+#include "webkit/extensions/v8/heap_profiler_extension.h"
 #include "webkit/extensions/v8/playback_extension.h"
 #include "webkit/extensions/v8/profiler_extension.h"
 #include "webkit/tools/test_shell/simple_resource_loader_bridge.h"
@@ -225,6 +226,11 @@ int main(int argc, char* argv[]) {
         extensions_v8::ProfilerExtension::Get());
   }
 
+  if (parsed_command_line.HasSwitch(test_shell::kHeapProfiler)) {
+    WebScriptController::registerExtension(
+        extensions_v8::HeapProfilerExtension::Get());
+  }
+
   // Load and initialize the stats table.  Attempt to construct a somewhat
   // unique name to isolate separate instances from each other.
   StatsTable *table = new StatsTable(