From 8525a292b0806d258576c2cfc5363b2c44dcaf22 Mon Sep 17 00:00:00 2001
From: JustOff <Off.Just.Off@gmail.com>
Date: Wed, 13 Mar 2019 20:07:10 +0200
Subject: Add ConvertJSValueTo*String functions that just take a value and hand
 out a string, without extra complications

---
 dom/bindings/BindingUtils.cpp | 10 +++++-----
 dom/bindings/BindingUtils.h   | 30 ++++++++++++++++++++++++++++--
 dom/bindings/Codegen.py       |  2 +-
 3 files changed, 34 insertions(+), 8 deletions(-)

diff --git a/dom/bindings/BindingUtils.cpp b/dom/bindings/BindingUtils.cpp
index 323feca52c..8d2bdaac64 100644
--- a/dom/bindings/BindingUtils.cpp
+++ b/dom/bindings/BindingUtils.cpp
@@ -2558,7 +2558,7 @@ NonVoidByteStringToJsval(JSContext *cx, const nsACString &str,
 
 
 template<typename T> static void
-NormalizeUSVStringInternal(JSContext* aCx, T& aString)
+NormalizeUSVStringInternal(T& aString)
 {
   char16_t* start = aString.BeginWriting();
   // Must use const here because we can't pass char** to UTF16CharEnumerator as
@@ -2575,15 +2575,15 @@ NormalizeUSVStringInternal(JSContext* aCx, T& aString)
 }
 
 void
-NormalizeUSVString(JSContext* aCx, nsAString& aString)
+NormalizeUSVString(nsAString& aString)
 {
-  NormalizeUSVStringInternal(aCx, aString);
+  NormalizeUSVStringInternal(aString);
 }
 
 void
-NormalizeUSVString(JSContext* aCx, binding_detail::FakeString& aString)
+NormalizeUSVString(binding_detail::FakeString& aString)
 {
-  NormalizeUSVStringInternal(aCx, aString);
+  NormalizeUSVStringInternal(aString);
 }
 
 bool
diff --git a/dom/bindings/BindingUtils.h b/dom/bindings/BindingUtils.h
index e017b986a7..a3ec70f474 100644
--- a/dom/bindings/BindingUtils.h
+++ b/dom/bindings/BindingUtils.h
@@ -2127,11 +2127,30 @@ ConvertJSValueToString(JSContext* cx, JS::Handle<JS::Value> v,
   return AssignJSString(cx, result, s);
 }
 
+template<typename T>
+static inline bool
+ConvertJSValueToString(JSContext* cx, JS::Handle<JS::Value> v, T& result)
+{
+  return ConvertJSValueToString(cx, v, eStringify, eStringify, result);
+}
+
 void
-NormalizeUSVString(JSContext* aCx, nsAString& aString);
+NormalizeUSVString(nsAString& aString);
 
 void
-NormalizeUSVString(JSContext* aCx, binding_detail::FakeString& aString);
+NormalizeUSVString(binding_detail::FakeString& aString);
+
+template<typename T>
+static inline bool
+ConvertJSValueToUSVString(JSContext* cx, JS::Handle<JS::Value> v, T& result)
+{
+  if (!ConvertJSValueToString(cx, v, eStringify, eStringify, result)) {
+    return false;
+  }
+
+  NormalizeUSVString(result);
+  return true;
+}
 
 template<typename T>
 inline bool
@@ -2158,6 +2177,13 @@ bool
 ConvertJSValueToByteString(JSContext* cx, JS::Handle<JS::Value> v,
                            bool nullable, nsACString& result);
 
+inline bool
+ConvertJSValueToByteString(JSContext* cx, JS::Handle<JS::Value> v,
+                           nsACString& result)
+{
+  return ConvertJSValueToByteString(cx, v, false, result);
+}
+
 template<typename T>
 void DoTraceSequence(JSTracer* trc, FallibleTArray<T>& seq);
 template<typename T>
diff --git a/dom/bindings/Codegen.py b/dom/bindings/Codegen.py
index ff6fa0ea38..915d7d4310 100644
--- a/dom/bindings/Codegen.py
+++ b/dom/bindings/Codegen.py
@@ -5560,7 +5560,7 @@ def getJSToNativeConversionInfo(type, descriptorProvider, failureCode=None,
         def getConversionCode(varName):
             normalizeCode = ""
             if type.isUSVString():
-                normalizeCode = "NormalizeUSVString(cx, %s);\n" % varName
+                normalizeCode = "NormalizeUSVString(%s);\n" % varName
 
             conversionCode = fill("""
                 if (!ConvertJSValueToString(cx, $${val}, ${nullBehavior}, ${undefinedBehavior}, ${varName})) {
-- 
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