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diff --git a/Source/WebKit/android/content/PhoneEmailDetector.h b/Source/WebKit/android/content/PhoneEmailDetector.h
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+++ b/Source/WebKit/android/content/PhoneEmailDetector.h
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+/*
+ * Copyright (C) 2011 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:
+ *
+ * 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 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 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 "content/content_detector.h"
+#include "PlatformString.h"
+
+#define NAVIGATION_MAX_PHONE_LENGTH 14
+
+struct FindState {
+    int mStartResult;
+    int mEndResult;
+    char* mPattern;
+    UChar mStore[NAVIGATION_MAX_PHONE_LENGTH + 1];
+    UChar* mStorePtr;
+    UChar mBackOne;
+    UChar mBackTwo;
+    UChar mCurrent;
+    bool mOpenParen;
+    bool mInitialized;
+    bool mContinuationNode;
+};
+
+enum FoundState {
+    FOUND_NONE,
+    FOUND_PARTIAL,
+    FOUND_COMPLETE
+};
+
+// Searches for phone numbers (US only) or email addresses based off of the navcache code
+class PhoneEmailDetector : public ContentDetector {
+public:
+    PhoneEmailDetector();
+    virtual ~PhoneEmailDetector() {}
+
+private:
+    // Implementation of ContentDetector.
+    virtual bool FindContent(const string16::const_iterator& begin,
+                             const string16::const_iterator& end,
+                             size_t* start_pos,
+                             size_t* end_pos);
+
+    virtual std::string GetContentText(const WebKit::WebRange& range);
+    virtual GURL GetIntentURL(const std::string& content_text);
+    virtual size_t GetMaximumContentLength() {
+        return NAVIGATION_MAX_PHONE_LENGTH * 4;
+    }
+
+    DISALLOW_COPY_AND_ASSIGN(PhoneEmailDetector);
+
+    FindState m_findState;
+    FoundState m_foundResult;
+    const char* m_prefix;
+};