Create a minimal webkit_common static library for use in browser process

public/platform/WebString.h

-/*
- * Copyright (C) 2009 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef WebString_h
-#define WebString_h
-
-#include "WebCommon.h"
-#include "WebPrivatePtr.h"
-
-#if WEBKIT_IMPLEMENTATION
-#include <wtf/Forward.h>
-#else
-#include <base/nullable_string16.h>
-#include <base/string16.h>
-#include <base/strings/latin1_string_conversions.h>
-#endif
-
-namespace WTF {
-class StringImpl;
-}
-
-namespace WebKit {
-
-class WebCString;
-
-// A UTF-16 string container.  It is inexpensive to copy a WebString
-// object.
-//
-// WARNING: It is not safe to pass a WebString across threads!!!
-//
-class WebString {
-public:
-    ~WebString() { reset(); }
-
-    WebString() { }
-
-    WebString(const WebUChar* data, size_t len)
-    {
-        assign(data, len);
-    }
-
-    WebString(const WebString& s) { assign(s); }
-
-    WebString& operator=(const WebString& s)
-    {
-        assign(s);
-        return *this;
-    }
-
-    WEBKIT_EXPORT void reset();
-    WEBKIT_EXPORT void assign(const WebString&);
-    WEBKIT_EXPORT void assign(const WebUChar* data, size_t len);
-
-    WEBKIT_EXPORT bool equals(const WebString& s) const;
-
-    WEBKIT_EXPORT size_t length() const;
-
-    // Caller must check bounds.
-    WEBKIT_EXPORT WebUChar at(unsigned) const;
-
-    bool isEmpty() const { return !length(); }
-    bool isNull() const { return m_private.isNull(); }
-
-    WEBKIT_EXPORT WebCString utf8() const;
-
-    WEBKIT_EXPORT static WebString fromUTF8(const char* data, size_t length);
-    WEBKIT_EXPORT static WebString fromUTF8(const char* data);
-
-    template <int N> WebString(const char (&data)[N])
-    {
-        assign(fromUTF8(data, N - 1));
-    }
-
-    template <int N> WebString& operator=(const char (&data)[N])
-    {
-        assign(fromUTF8(data, N - 1));
-        return *this;
-    }
-
-#if WEBKIT_IMPLEMENTATION
-    WebString(const WTF::String&);
-    WebString& operator=(const WTF::String&);
-    operator WTF::String() const;
-
-    WebString(const WTF::AtomicString&);
-    WebString& operator=(const WTF::AtomicString&);
-    operator WTF::AtomicString() const;
-#else
-
-    WebString(const string16& s)
-    {
-        assign(s.data(), s.length());
-    }
-
-    WebString& operator=(const string16& s)
-    {
-        assign(s.data(), s.length());
-        return *this;
-    }
-
-    operator string16() const
-    {
-        return base::Latin1OrUTF16ToUTF16(length(), data8(), data16());
-    }
-
-    WebString(const NullableString16& s)
-    {
-        if (s.is_null())
-            reset();
-        else
-            assign(s.string().data(), s.string().length());
-    }
-
-    WebString& operator=(const NullableString16& s)
-    {
-        if (s.is_null())
-            reset();
-        else
-            assign(s.string().data(), s.string().length());
-        return *this;
-    }
-
-    operator NullableString16() const
-    {
-        return NullableString16(operator string16(), m_private.isNull());
-    }
-
-    template <class UTF8String>
-    static WebString fromUTF8(const UTF8String& s)
-    {
-        return fromUTF8(s.data(), s.length());
-    }
-#endif
-
-private:
-    WEBKIT_EXPORT bool is8Bit() const;
-    WEBKIT_EXPORT const WebLChar* data8() const;
-    WEBKIT_EXPORT const WebUChar* data16() const;
-
-    void assign(WTF::StringImpl*);
-
-    WebPrivatePtr<WTF::StringImpl> m_private;
-};
-
-inline bool operator==(const WebString& a, const WebString& b)
-{
-    return a.equals(b);
-}
-
-inline bool operator!=(const WebString& a, const WebString& b)
-{
-    return !(a == b);
-}
-
-} // namespace WebKit
-
-#endif
+#include "../common/WebString.h"