Connects PostMessage() for OOPIFs

components/html_viewer/blink_basic_type_converters.cc

Index: components/html_viewer/blink_basic_type_converters.cc
diff --git a/components/html_viewer/blink_basic_type_converters.cc b/components/html_viewer/blink_basic_type_converters.cc
index f7a5ff470b36c1f311cc43c502fc9cd27cd360e5..70a9b8a04bac21a61d5eaf39b2afc005574e4191 100644
--- a/components/html_viewer/blink_basic_type_converters.cc
+++ b/components/html_viewer/blink_basic_type_converters.cc
@@ -24,6 +24,17 @@ WebString TypeConverter<WebString, String>::Convert(const String& str) {
 }
 
 // static
+WebString TypeConverter<WebString, Array<uint8_t>>::Convert(
+    const Array<uint8_t>& input) {
+  COMPILE_ASSERT(sizeof(uint8_t) == sizeof(char),
+                 uint8_t_same_size_as_unsigned_char);
+  return input.is_null()
+             ? WebString()
+             : WebString::fromUTF8(
+                   reinterpret_cast<const char*>(&input.front()), input.size());
+}
+
+// static
 RectPtr TypeConverter<RectPtr, WebRect>::Convert(const WebRect& input) {
   RectPtr result(Rect::New());
   result->x = input.x;
@@ -34,12 +45,15 @@ RectPtr TypeConverter<RectPtr, WebRect>::Convert(const WebRect& input) {
 };
 
 // static
-Array<uint8_t> TypeConverter<Array<uint8_t>, blink::WebString>::Convert(
-    const blink::WebString& input) {
-  std::string utf8 = input.utf8();
+Array<uint8_t> TypeConverter<Array<uint8_t>, WebString>::Convert(
+    const WebString& input) {
+  if (input.isNull())
+    return Array<uint8_t>();
+  const std::string utf8 = input.utf8();
   Array<uint8_t> result(utf8.size());
-  for (size_t i = 0; i < utf8.size(); ++i)
-    result[i] = utf8[i];
+  COMPILE_ASSERT(sizeof(uint8_t) == sizeof(char),
+                 uint8_t_same_size_as_unsigned_char);
+  memcpy(&result.front(), utf8.data(), utf8.size());
   return result.Pass();
 }