message: Use root utils namespace in Systrace.h
diff: #endif
  // enable tracing
  -#define SYSTRACE_ENABLE() utils::details::Systrace::enable(SYSTRACE_TAG)
  +#define SYSTRACE_ENABLE() ::utils::details::Systrace::enable(SYSTRACE_TAG)
  // disable tracing
  -#define SYSTRACE_DISABLE() utils::details::Systrace::disable(SYSTRACE_TAG)
  +#define SYSTRACE_DISABLE() ::utils::details::Systrace::disable(SYSTRACE_TAG)
  /**
  * Creates a Systrace context in the current scope. needed for calling all other systrace
  * commands below.
  */
  -#define SYSTRACE_CONTEXT() utils::details::Systrace ___tracer(SYSTRACE_TAG)
  +#define SYSTRACE_CONTEXT() ::utils::details::Systrace ___tracer(SYSTRACE_TAG)
  // SYSTRACE_NAME traces the beginning and end of the current scope. To trace
  // the correct start and end times this macro should be declared first in the
  // scope body.
  // It also automatically creates a Systrace context
  -#define SYSTRACE_NAME(name) utils::details::ScopedTrace ___tracer(SYSTRACE_TAG, name)
  +#define SYSTRACE_NAME(name) ::utils::details::ScopedTrace ___tracer(SYSTRACE_TAG, name)
  // SYSTRACE_CALL is an SYSTRACE_NAME that uses the current function name.
  #define SYSTRACE_CALL() SYSTRACE_NAME(__FUNCTION__)
  