Remove Backslash-as-JPY hack

Source/wtf/text/TextCodecICU.cpp

Index: Source/wtf/text/TextCodecICU.cpp
diff --git a/Source/wtf/text/TextCodecICU.cpp b/Source/wtf/text/TextCodecICU.cpp
index 7458c2acf09a34405c51ed3086124e9717d0f976..7a9014b4ba60f2181d3532d086fcfe165dce36d1 100644
--- a/Source/wtf/text/TextCodecICU.cpp
+++ b/Source/wtf/text/TextCodecICU.cpp
@@ -424,36 +424,21 @@ public:
     TextCodecInput(const TextEncoding& encoding, const UChar* characters, size_t length)
         : m_begin(characters)
         , m_end(characters + length)
-    {
-        if (encoding.hasTrivialDisplayString())
-            return;
-        m_buffer.reserveInitialCapacity(length);
-        m_buffer.append(characters, length);
-        initalizeFromBuffer(encoding);
-    }
+    { }
 
     TextCodecInput(const TextEncoding& encoding, const LChar* characters, size_t length)
     {
         m_buffer.reserveInitialCapacity(length);
         for (size_t i = 0; i < length; ++i)
             m_buffer.append(characters[i]);
-        initalizeFromBuffer(encoding);
+        m_begin = m_buffer.data();
+        m_end = m_begin + m_buffer.size();
     }
 
     const UChar* begin() const { return m_begin; }
     const UChar* end() const { return m_end; }
 
 private:
-    void initalizeFromBuffer(const TextEncoding& encoding)
-    {
-        // FIXME: We should see if there is "force ASCII range" mode in ICU;
-        // until then, we change the backslash into a yen sign.
-        // Encoding will change the yen sign back into a backslash.
-        encoding.displayBuffer(m_buffer.data(), m_buffer.size());
-        m_begin = m_buffer.data();
-        m_end = m_begin + m_buffer.size();
-    }
-
     const UChar* m_begin;
     const UChar* m_end;
     Vector<UChar> m_buffer;