Bug 1355123 - Initialize gecko profiler properly for IPDL test runner. r=mstange,njn

MozReview-Commit-ID: C9hkZPj3SVL

toolkit/xre/nsEmbedFunctions.cpp

@@ -770,6 +770,12 @@ XRE_InitParentProcess(int aArgc,
   NS_ENSURE_ARG_POINTER(aArgv);
   NS_ENSURE_ARG_POINTER(aArgv[0]);
 
+  // Set main thread before we initialize the profiler
+  NS_SetMainThread();
+
+  char aLocal;
+  GeckoProfilerInitRAII profiler(&aLocal);
+
   ScopedXREEmbed embed;
 
   gArgc = aArgc;

tools/profiler/core/platform.cpp

@@ -1981,7 +1981,6 @@ profiler_init(void* aStackTop)
 {
   LOG("profiler_init");
 
-  MOZ_RELEASE_ASSERT(NS_IsMainThread());
   MOZ_RELEASE_ASSERT(!gPS);
 
   const char* features[] = { "js"