WIP: Introduce CompressibleString

third_party/WebKit/Source/bindings/core/v8/V8StringResource.h

Index: third_party/WebKit/Source/bindings/core/v8/V8StringResource.h
diff --git a/third_party/WebKit/Source/bindings/core/v8/V8StringResource.h b/third_party/WebKit/Source/bindings/core/v8/V8StringResource.h
index 65b12efe12a28b11cce0376f64cda85c6c0288ba..d13e29ef81de9e9b401b7831b5b1094abf5926b7 100644
--- a/third_party/WebKit/Source/bindings/core/v8/V8StringResource.h
+++ b/third_party/WebKit/Source/bindings/core/v8/V8StringResource.h
@@ -31,6 +31,7 @@
 #include "wtf/Allocator.h"
 #include "wtf/Threading.h"
 #include "wtf/text/AtomicString.h"
+#include "wtf/text/CompressableString.h"
 #include <v8.h>
 
 namespace blink {
@@ -153,6 +154,54 @@ public:
     }
 };
 
+class WebCoreCompressableStringResource16 final : public v8::String::ExternalStringResource {
+    WTF_MAKE_NONCOPYABLE(WebCoreCompressableStringResource16);
+public:
+    explicit WebCoreCompressableStringResource16(RefPtrWillBeRawPtr<CompressableString> string)
+        : m_string(string)
+    {
+        ASSERT(m_string);
+        ASSERT(!m_string->is8Bit());
+    }
+
+    size_t length() const override
+    {
+        return m_string->length();
+    }
+
+    const uint16_t* data() const override
+    {
+        return reinterpret_cast<const uint16_t*>(m_string->toString().characters16());
+    }
+
+private:
+    RefPtrWillBeMember<CompressableString> m_string;
+};
+
+class WebCoreCompressableStringResource8 final : public v8::String::ExternalOneByteStringResource {
+    WTF_MAKE_NONCOPYABLE(WebCoreCompressableStringResource8);
+public:
+    explicit WebCoreCompressableStringResource8(RefPtrWillBeRawPtr<CompressableString> string)
+        : m_string(string)
+    {
+        ASSERT(m_string);
+        ASSERT(m_string->is8Bit());
+    }
+
+    size_t length() const override
+    {
+        return m_string->length();
+    }
+
+    const char* data() const override
+    {
+        return reinterpret_cast<const char*>(m_string->toString().characters8());
+    }
+
+private:
+    RefPtrWillBeMember<CompressableString> m_string;
+};
+
 enum ExternalMode {
     Externalize,
     DoNotExternalize