memory-infra: Rename Enable/Disable in MemoryDumpManager.

base/trace_event/memory_dump_manager.h

Index: base/trace_event/memory_dump_manager.h
diff --git a/base/trace_event/memory_dump_manager.h b/base/trace_event/memory_dump_manager.h
index 6c71a247a68aad73f143ca5b9af3cd336574192d..9cadf3730ed3cbc3a37540fb414cc9aa9d85c5da 100644
--- a/base/trace_event/memory_dump_manager.h
+++ b/base/trace_event/memory_dump_manager.h
@@ -126,15 +126,14 @@ class BASE_EXPORT MemoryDumpManager {
   void RequestGlobalDump(MemoryDumpType dump_type,
                          MemoryDumpLevelOfDetail level_of_detail);
 
-  // Prepare MemoryDumpManager for RequestGlobalMemoryDump calls.
-  // Starts the MemoryDumpManager thread.
-  // Also uses the given config to initialize the peak detector,
-  // scheduler and heap profiler.
-  void Enable(const TraceConfig::MemoryDumpConfig&);
-
-  // Tearsdown the MemoryDumpManager thread and various other state set up by
-  // Enable.
-  void Disable();
+  // Prepare MemoryDumpManager for RequestGlobalMemoryDump calls for tracing
+  // related modes (non-SUMMARY_ONLY).
+  // Initializes the peak detector, scheduler and heap profiler with the given
+  // config.
+  void SetupForTracing(const TraceConfig::MemoryDumpConfig&);
+
+  // Tear-down tracing related state.

[Primiano Tucci (use gerrit), 2017/05/09 12:34:11]

maybe just clarify in the comment that the all the other, non-tracing related 
operations (e.g. SUMMARY-ONLY) still work after this.

+  void TeardownForTracing();
 
   // NOTE: Use RequestGlobalDump() to create memory dumps. Creates a memory dump
   // for the current process and appends it to the trace. |callback| will be