Address NewApi warnings in src/ui.

ui/android/java/src/org/chromium/ui/base/Clipboard.java

Index: ui/android/java/src/org/chromium/ui/base/Clipboard.java
diff --git a/ui/android/java/src/org/chromium/ui/base/Clipboard.java b/ui/android/java/src/org/chromium/ui/base/Clipboard.java
index aaa500ea6dec0a58c941f9e461844608253c7c66..8abde25f86c27a2af2669f662463f12d287570b6 100644
--- a/ui/android/java/src/org/chromium/ui/base/Clipboard.java
+++ b/ui/android/java/src/org/chromium/ui/base/Clipboard.java
@@ -4,12 +4,13 @@
 
 package org.chromium.ui.base;
 
+import android.annotation.TargetApi;
 import android.content.ClipData;
 import android.content.ClipboardManager;
 import android.content.Context;
+import android.os.Build;
 import android.widget.Toast;
 
-import org.chromium.base.ApiCompatibilityUtils;
 import org.chromium.base.CalledByNative;
 import org.chromium.base.JNINamespace;
 import org.chromium.ui.R;
@@ -20,6 +21,10 @@ import org.chromium.ui.R;
  */
 @JNINamespace("ui")
 public class Clipboard {
+
+    private static final boolean IS_HTML_CLIPBOARD_SUPPORTED =
+            Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN;
+
     // Necessary for coercing clipboard contents to text if they require
     // access to network resources, etceteras (e.g., URI in clipboard)
     private final Context mContext;
@@ -84,8 +89,9 @@ public class Clipboard {
      *         text or no entries on the primary clip.
      */
     @CalledByNative
+    @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
     private String getHTMLText() {
-        if (isHTMLClipboardSupported()) {
+        if (IS_HTML_CLIPBOARD_SUPPORTED) {
             final ClipData clip = mClipboardManager.getPrimaryClip();
             if (clip != null && clip.getItemCount() > 0) {
                 return clip.getItemAt(0).getHtmlText();
@@ -129,8 +135,9 @@ public class Clipboard {
      * @param label The Plain-text label for the HTML content.
      * @param text  Plain-text representation of the HTML content.
      */
+    @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
     public void setHTMLText(final String html, final String label, final String text) {
-        if (isHTMLClipboardSupported()) {
+        if (IS_HTML_CLIPBOARD_SUPPORTED) {
             setPrimaryClipNoException(ClipData.newHtmlText(label, text, html));
         }
     }
@@ -150,7 +157,7 @@ public class Clipboard {
 
     @CalledByNative
     private static boolean isHTMLClipboardSupported() {
-        return ApiCompatibilityUtils.isHTMLClipboardSupported();
+        return IS_HTML_CLIPBOARD_SUPPORTED;
     }
 
     private void setPrimaryClipNoException(ClipData clip) {