[Blink>TextEncoder] Removed UTF-16 support from TextEncoder API.

third_party/WebKit/Source/modules/encoding/TextEncoder.cpp

Index: third_party/WebKit/Source/modules/encoding/TextEncoder.cpp
diff --git a/third_party/WebKit/Source/modules/encoding/TextEncoder.cpp b/third_party/WebKit/Source/modules/encoding/TextEncoder.cpp
index 72bb04deffb1d9bac4bf2f3f8c98e2f19f122f5c..4b23c2dd7d91a83a63d6b34698e2e1f66248a345 100644
--- a/third_party/WebKit/Source/modules/encoding/TextEncoder.cpp
+++ b/third_party/WebKit/Source/modules/encoding/TextEncoder.cpp
@@ -32,7 +32,7 @@
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "core/dom/ExecutionContext.h"
-#include "core/frame/UseCounter.h"
+// #include "core/frame/UseCounter.h"

[jsbell, 2016/04/06 18:03:22]

Delete, don't comment it out.

[lpan, 2016/04/09 03:25:15]

Done.

 #include "modules/encoding/Encoding.h"
 #include "wtf/text/CString.h"
 #include "wtf/text/TextEncodingRegistry.h"
@@ -48,14 +48,11 @@ TextEncoder* TextEncoder::create(ExecutionContext* context, const String& utfLab
     }
 
     String name(encoding.name());

[jsbell, 2016/04/06 18:03:23]

This block can be removed.

[lpan, 2016/04/09 03:25:16]

Done.

-    if (name != "UTF-8" && name != "UTF-16LE" && name != "UTF-16BE") {
-        exceptionState.throwRangeError("The encoding provided ('" + utfLabel + "') is not one of 'utf-8', 'utf-16', or 'utf-16be'.");
+    if (name != "UTF-8" && name != "utf-8") {
+        exceptionState.throwRangeError("The encoding provided ('" + utfLabel + "') is not 'utf-8'.");
         return 0;
     }
 
-    if (name == "UTF-16LE" || name == "UTF-16BE")
-        UseCounter::count(context, UseCounter::TextEncoderUTF16);
-
     return new TextEncoder(encoding);

[jsbell, 2016/04/06 18:03:22]

The TextEncoding construction can even be done inline here.

[lpan, 2016/04/09 03:25:16]

Acknowledged.

 }
 
@@ -72,7 +69,7 @@ TextEncoder::~TextEncoder()
 String TextEncoder::encoding() const
 {
     String name = String(m_encoding.name()).lower();
-    ASSERT(name == "utf-8" || name == "utf-16le" || name == "utf-16be");
+    ASSERT(name == "utf-8");
     return name;
 }