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diff --git a/Source/WebKit2/UIProcess/mac/WebPageProxyMac.mm b/Source/WebKit2/UIProcess/mac/WebPageProxyMac.mm
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+/*
+ * Copyright (C) 2010 Apple 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:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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.
+ */
+
+#include "WebPageProxy.h"
+
+#include <WebCore/Language.h>
+#include <wtf/text/StringConcatenate.h>
+
+@interface NSApplication (Details)
+- (void)speakString:(NSString *)string;
+@end
+
+using namespace WebCore;
+
+namespace WebKit {
+
+#if defined(__ppc__) || defined(__ppc64__)
+#define PROCESSOR "PPC"
+#elif defined(__i386__) || defined(__x86_64__)
+#define PROCESSOR "Intel"
+#else
+#error Unknown architecture
+#endif
+
+static inline int callGestalt(OSType selector)
+{
+    SInt32 value = 0;
+    Gestalt(selector, &value);
+    return value;
+}
+
+// Uses underscores instead of dots because if "4." ever appears in a user agent string, old DHTML libraries treat it as Netscape 4.
+static String macOSXVersionString()
+{
+    // Can't use -[NSProcessInfo operatingSystemVersionString] because it has too much stuff we don't want.
+    int major = callGestalt(gestaltSystemVersionMajor);
+    ASSERT(major);
+
+    int minor = callGestalt(gestaltSystemVersionMinor);
+    int bugFix = callGestalt(gestaltSystemVersionBugFix);
+    if (bugFix)
+        return String::format("%d_%d_%d", major, minor, bugFix);
+    if (minor)
+        return String::format("%d_%d", major, minor);
+    return String::format("%d", major);
+}
+
+static String userVisibleWebKitVersionString()
+{
+    // If the version is 4 digits long or longer, then the first digit represents
+    // the version of the OS. Our user agent string should not include this first digit,
+    // so strip it off and report the rest as the version. <rdar://problem/4997547>
+    NSString *fullVersion = [[NSBundle bundleForClass:NSClassFromString(@"WKView")] objectForInfoDictionaryKey:(NSString *)kCFBundleVersionKey];
+    NSRange nonDigitRange = [fullVersion rangeOfCharacterFromSet:[[NSCharacterSet decimalDigitCharacterSet] invertedSet]];
+    if (nonDigitRange.location == NSNotFound && [fullVersion length] >= 4)
+        return [fullVersion substringFromIndex:1];
+    if (nonDigitRange.location != NSNotFound && nonDigitRange.location >= 4)
+        return [fullVersion substringFromIndex:1];
+    return fullVersion;
+}
+
+String WebPageProxy::standardUserAgent(const String& applicationNameForUserAgent)
+{
+    DEFINE_STATIC_LOCAL(String, osVersion, (macOSXVersionString()));
+    DEFINE_STATIC_LOCAL(String, webKitVersion, (userVisibleWebKitVersionString()));
+
+    // FIXME: We should upate the user agent if the default language changes.
+    String language = defaultLanguage();
+
+    if (applicationNameForUserAgent.isEmpty())
+        return makeString("Mozilla/5.0 (Macintosh; U; " PROCESSOR " Mac OS X ", osVersion, "; ", language, ") AppleWebKit/", webKitVersion, " (KHTML, like Gecko)");
+    return makeString("Mozilla/5.0 (Macintosh; U; " PROCESSOR " Mac OS X ", osVersion, "; ", language, ") AppleWebKit/", webKitVersion, " (KHTML, like Gecko) ", applicationNameForUserAgent);
+}
+
+void WebPageProxy::getIsSpeaking(bool& isSpeaking)
+{
+    isSpeaking = [NSApp isSpeaking];
+}
+
+void WebPageProxy::speak(const String& string)
+{
+    NSString *convertedString = string;
+    [NSApp speakString:convertedString];
+}
+
+void WebPageProxy::stopSpeaking()
+{
+    [NSApp stopSpeaking:nil];
+}
+
+} // namespace WebKit