Allow WebString.utf8() to take UTF8ConversionMode

third_party/WebKit/public/platform/WebString.h

Index: third_party/WebKit/public/platform/WebString.h
diff --git a/third_party/WebKit/public/platform/WebString.h b/third_party/WebKit/public/platform/WebString.h
index 5c1c5406f5af30f85631655cc9ba0340752e8d1c..b9db337d61221ddcfb96e65b79f43b950f2f0025 100644
--- a/third_party/WebKit/public/platform/WebString.h
+++ b/third_party/WebKit/public/platform/WebString.h
@@ -79,6 +79,12 @@ namespace blink {
 //
 class WebString {
  public:
+  enum UTF8ConversionMode {

[jochen (gone - plz use gerrit), 2017/01/13 08:42:31]

nit. why not an enum class? constants should start with k

[kinuko, 2017/01/17 07:15:49]

Done.

+    LenientUTF8Conversion,
+    StrictUTF8Conversion,
+    StrictUTF8ConversionReplacingUnpairedSurrogatesWithFFFD
+  };
+
   ~WebString() { reset(); }
 
   WebString() {}
@@ -104,7 +110,8 @@ class WebString {
   bool isEmpty() const { return !length(); }
   bool isNull() const { return m_private.isNull(); }
 
-  BLINK_COMMON_EXPORT std::string utf8() const;
+  BLINK_COMMON_EXPORT std::string utf8(
+      UTF8ConversionMode = LenientUTF8Conversion) const;
 
   BLINK_COMMON_EXPORT static WebString fromUTF8(const char* data,
                                                 size_t length);