Add systrace support to NewTimingLogger, migrate compiler timing logging to NewTimingLogger

Rpleaced old TimingLogger by NewTimingLogger, renamed NewTimingLogger to TimingLogger, added systrace support to TimingLogger.
Tests passing, phone booting, systrace working.

Change-Id: I2aeffb8bcb7f0fd979d8a2a3a8bcfbaa02413679
diff --git a/runtime/base/timing_logger.h b/runtime/base/timing_logger.h
index 0f00a04..0998837 100644
--- a/runtime/base/timing_logger.h
+++ b/runtime/base/timing_logger.h
@@ -26,27 +26,8 @@
 
 namespace art {
 
-class CumulativeLogger;
-
-class TimingLogger {
- public:
-  explicit TimingLogger(const std::string& name, bool precise);
-  void AddSplit(const std::string& label);
-  void Dump(std::ostream& os) const;
-  void Reset();
-  uint64_t GetTotalNs() const;
-
- protected:
-  const std::string name_;
-  const bool precise_;
-  std::vector<uint64_t> times_;
-  std::vector<std::string> labels_;
-
-  friend class CumulativeLogger;
-};
-
 namespace base {
-  class NewTimingLogger;
+  class TimingLogger;
 }  // namespace base
 
 class CumulativeLogger {
@@ -62,8 +43,7 @@
   // Allow the name to be modified, particularly when the cumulative logger is a field within a
   // parent class that is unable to determine the "name" of a sub-class.
   void SetName(const std::string& name);
-  void AddLogger(const TimingLogger& logger) LOCKS_EXCLUDED(lock_);
-  void AddNewLogger(const base::NewTimingLogger& logger) LOCKS_EXCLUDED(lock_);
+  void AddLogger(const base::TimingLogger& logger) LOCKS_EXCLUDED(lock_);
 
  private:
   void AddPair(const std::string &label, uint64_t delta_time)
@@ -84,16 +64,15 @@
 namespace base {
 
 // A replacement to timing logger that know when a split starts for the purposes of logging.
-// TODO: replace uses of TimingLogger with base::NewTimingLogger.
-class NewTimingLogger {
+class TimingLogger {
  public:
-  explicit NewTimingLogger(const char* name, bool precise, bool verbose);
+  explicit TimingLogger(const char* name, bool precise, bool verbose);
 
   // Clears current splits and labels.
   void Reset();
 
   // Starts a split, a split shouldn't be in progress.
-  void StartSplit(const char* new_split_label);
+  void StartSplit(const char*  new_split_label);
 
   // Ends the current split and starts the one given by the label.
   void NewSplit(const char* new_split_label);
@@ -111,7 +90,7 @@
 
  protected:
   // The name of the timing logger.
-  const std::string name_;
+  const char* name_;
 
   // Do we want to print the exactly recorded split (true) or round down to the time unit being
   // used (false).
@@ -130,7 +109,7 @@
   std::vector<std::pair<uint64_t, const char*> > splits_;
 
  private:
-  DISALLOW_COPY_AND_ASSIGN(NewTimingLogger);
+  DISALLOW_COPY_AND_ASSIGN(TimingLogger);
 };
 
 }  // namespace base