Split the footer in ClearBrowsingDataPreferences into two paragraphs

chrome/android/java/src/org/chromium/chrome/browser/preferences/TextMessageWithLinkAndIconPreference.java

Index: chrome/android/java/src/org/chromium/chrome/browser/preferences/TextMessageWithLinkAndIconPreference.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/preferences/TextMessageWithLinkAndIconPreference.java b/chrome/android/java/src/org/chromium/chrome/browser/preferences/TextMessageWithLinkAndIconPreference.java
new file mode 100644
index 0000000000000000000000000000000000000000..b2c0805e3f124026bda6fbb8744b0d8f49e1cbd0
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/preferences/TextMessageWithLinkAndIconPreference.java
@@ -0,0 +1,69 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.chrome.browser.preferences;
+
+import android.content.Context;
+import android.text.SpannableString;
+import android.text.method.LinkMovementMethod;
+import android.util.AttributeSet;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import org.chromium.chrome.R;
+import org.chromium.ui.text.NoUnderlineClickableSpan;
+import org.chromium.ui.text.SpanApplier;
+
+/**
+ * A text message whose summary can contain a link. The link should be denoted by "<link></link>"
+ * tags and the action upon its clicking is defined by |setLinkClickDelegate()|.
+ */
+public class TextMessageWithLinkAndIconPreference extends TextMessagePreference {
+    private Runnable mLinkClickDelegate;
+
+    /**
+     * Constructor for inflating from XML.
+     */
+    public TextMessageWithLinkAndIconPreference(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        setLayoutResource(R.layout.text_message_with_link_and_icon_preference);
+    }
+
+    /**
+     * @param delegate A delegate to handle link click.
+     */
+    public void setLinkClickDelegate(Runnable delegate) {
+        mLinkClickDelegate = delegate;
+    }
+
+    @Override
+    public void setSummary(CharSequence summary) {
+        // If there is no link in the summary, invoke the default behavior.
+        String summaryString = summary.toString();
+        if (!summaryString.contains("<link>") || !summaryString.contains("</link>")) {
+            super.setSummary(summary);
+            return;
+        }
+
+        // Linkify <link></link> span.
+        final SpannableString summaryWithLink = SpanApplier.applySpans(summaryString,
+                new SpanApplier.SpanInfo("<link>", "</link>", new NoUnderlineClickableSpan() {
+                    @Override
+                    public void onClick(View widget) {
+                        if (mLinkClickDelegate != null) mLinkClickDelegate.run();
+                    }
+                }));
+
+        super.setSummary(summaryWithLink);
+    }
+
+    @Override
+    public View onCreateView(ViewGroup parent) {
+        View view = super.onCreateView(parent);
+        ((TextView) view.findViewById(android.R.id.summary)).setMovementMethod(
+                LinkMovementMethod.getInstance());
+        return view;
+    }
+}