[Contextual Search] Add a handle to the bar when Chrome Home is enabled

base/android/java/src/org/chromium/base/ApiCompatibilityUtils.java

Index: base/android/java/src/org/chromium/base/ApiCompatibilityUtils.java
diff --git a/base/android/java/src/org/chromium/base/ApiCompatibilityUtils.java b/base/android/java/src/org/chromium/base/ApiCompatibilityUtils.java
index 406f328c18058b11c6c8d72d85d429df38a368ad..d76994bf7ca198f0880ca2575e0d47e74990b75e 100644
--- a/base/android/java/src/org/chromium/base/ApiCompatibilityUtils.java
+++ b/base/android/java/src/org/chromium/base/ApiCompatibilityUtils.java
@@ -36,12 +36,15 @@ import android.view.inputmethod.InputMethodSubtype;
 import android.widget.TextView;
 
 import java.io.File;
+import java.util.concurrent.atomic.AtomicInteger;
 
 /**
  * Utility class to use new APIs that were added after ICS (API level 14).
  */
 @TargetApi(Build.VERSION_CODES.LOLLIPOP)
 public class ApiCompatibilityUtils {
+    private static final AtomicInteger sNextGeneratedId = new AtomicInteger(1);
+
     private ApiCompatibilityUtils() {
     }
 
@@ -643,4 +646,22 @@ public class ApiCompatibilityUtils {
     public static boolean objectEquals(Object a, Object b) {
         return (a == null) ? (b == null) : a.equals(b);
     }
+
+    /**
+     * @see android.view.View.generateViewId();
+     */
+    public static int generateViewId() {
+        if (Build.VERSION.SDK_INT > Build.VERSION_CODES.JELLY_BEAN_MR1) {
+            return View.generateViewId();
+        }
+        for (;;) {
+            final int result = sNextGeneratedId.get();
+            // aapt-generated IDs have the high byte nonzero; clamp to the range under that.
+            int newValue = result + 1;
+            if (newValue > 0x00FFFFFF) newValue = 1; // Roll over to 1, not 0.
+            if (sNextGeneratedId.compareAndSet(result, newValue)) {
+                return result;
+            }
+        }
+    }
 }