[Android] Use WebContents text manipulation methods directly

content/public/android/java/src/org/chromium/content_public/browser/WebContents.java

Index: content/public/android/java/src/org/chromium/content_public/browser/WebContents.java
diff --git a/content/public/android/java/src/org/chromium/content_public/browser/WebContents.java b/content/public/android/java/src/org/chromium/content_public/browser/WebContents.java
index 8e659cda3716b080c1cb6017f2230eb283a267ef..0fb58a0ac4da5cfbc76719e104e64f060ccbafca 100644
--- a/content/public/android/java/src/org/chromium/content_public/browser/WebContents.java
+++ b/content/public/android/java/src/org/chromium/content_public/browser/WebContents.java
@@ -75,6 +75,31 @@ public interface WebContents extends Parcelable {
     void stop();
 
     /**
+     * Cut the selected content.
+     */
+    void cut();
+
+    /**
+     * Copy the selected content.
+     */
+    void copy();
+
+    /**
+     * Paste content from the clipboard.
+     */
+    void paste();
+
+    /**
+     * Select all content.
+     */
+    void selectAll();
+
+    /**
+     * Clear the selection.
+     */
+    void unselect();
+
+    /**
      * Inserts css into main frame's document.
      */
     void insertCSS(String css);