import changes from `dev' branch of rmottola/Arctic-Fox:

- Bug 751387 - Fix crash caused by out-of-bounds accesses in command line options handling. r=bholley (240670c35)
- Bug 1162187 - Pass around AutoJSAPI instead of cx to give us more control over error handling. r=glandium (702954016)
- Bug 1162187 - Factor out single line argument processing into a helper. r=glandium (56efce591)
- Bug 1162187 - Use the AutoJSAPI machinery to handle xpcshell exceptions. r=glandium (162309001)
- Bug 1162187 - Remove the custom XPCShell error reporter. r=glandium (523d84539)
- Bug 1162187 - Remove ignoreReportedErrors. r=glandium (072f247a3)
- Bug 1161590 - xpcshell needs to initialize graphics prefs so that GfxInfo::GetFeatureStatus can check preferences. r=ehsan (5a8415817)
- Bug 1166243 - Remove build() function from js and xpc shells. r=bholley,r=efaust (8537f2259)
- Bug 1182357 - Implement support for optional size_is for arrays passed from JS. r=mrbkap (0d22d3f34)
- missing profiler parts of Bug 1092311 - Fix IndexedDB profiler markers and logging (a68567bbb)
- Bug 1086999 - CSP: Asterisk (*) wildcard should not allow blob:, data:, or filesystem: when matching source expressions (r=fabrice,pauljt) (7757a92ae)
- Bug 1105827 - Part 1: Add stub PermissionStatus implementation. r=baku (2bd4c1dd3)
- Bug 635134 - Adds X11 run-time check for Gtk3 backend. r=karlt (7e9304f5e)
- Bug 994541 - Enable BasicCompositor OMTC on linux. r=Bas (c9a266beb)
- Bug 1105827 - Part 2: Add stub Permissions implementation. r=baku (751f5e9e6)
- Bug 1105827 - Part 3: Implement Permissions.query. r=baku (a30a48cbe)
- Bug 1105827 - Part 4: Add Navigator.permissions. r=baku (0d70fc5e6)
- Bug 1174861 - Remove unnecessary Rooted from Prefable::isEnabled(). r=bholley (a0893081d)

ipc/testshell/XPCShellEnvironment.cpp

@@ -196,15 +196,6 @@ Version(JSContext *cx,
     return true;
 }
 
-static bool
-BuildDate(JSContext *cx, unsigned argc, JS::Value *vp)
-{
-    JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
-    fprintf(stdout, "built on %s at %s\n", __DATE__, __TIME__);
-    args.rval().setUndefined();
-    return true;
-}
-
 static bool
 Quit(JSContext *cx,
      unsigned argc,
@@ -274,7 +265,6 @@ const JSFunctionSpec gGlobalFunctions[] =
     JS_FS("load",            Load,           1,0),
     JS_FS("quit",            Quit,           0,0),
     JS_FS("version",         Version,        1,0),
-    JS_FS("build",           BuildDate,      0,0),
     JS_FS("dumpXPC",         DumpXPC,        1,0),
     JS_FS("dump",            Dump,           1,0),
     JS_FS("gc",              GC,             0,0),
@@ -377,7 +367,7 @@ XPCShellEnvironment::ProcessFile(JSContext *cx,
             JSErrorReporter older;
 
             ok = JS_ExecuteScript(cx, script, &result);
-            if (ok && result != JSVAL_VOID) {
+            if (ok && !result.isUndefined()) {
                 /* Suppress error reports from JS::ToString(). */
                 older = JS_SetErrorReporter(JS_GetRuntime(cx), nullptr);
                 str = JS::ToString(cx, result);
@@ -594,7 +584,7 @@ XPCShellEnvironment::EvaluateString(const nsString& aString,
 
   JS::Rooted<JS::Value> result(cx);
   bool ok = JS_ExecuteScript(cx, script, &result);
-  if (ok && result != JSVAL_VOID) {
+  if (ok && !result.isUndefined()) {
       JSErrorReporter old = JS_SetErrorReporter(JS_GetRuntime(cx), nullptr);
       JSString* str = JS::ToString(cx, result);
       nsAutoJSString autoStr;