Quick fix for Monkey NPE.

 Bug 6097462
 If paste window is shown before the insert thumb, an NPE
 would be thrown. This will be fixed fully later when the paste
 window is showing up only at the proper times rather than every
 time the insert thumb is shown.

Change-Id: I91eec7c28fc64a2274f5c3cd36784fedcae055ca

Author: George Mount

core/java/android/webkit/WebViewClassic.java

@@ -736,6 +736,7 @@ public void show(Rect cursorRect, int windowLeft, int windowTop) {
                 // handle.
                 // The selection handle is vertically offset by 1/4 of the
                 // line height.
+                ensureSelectionHandles();
                 y = cursorRect.bottom - (cursorRect.height() / 4) +
                         mSelectHandleCenter.getIntrinsicHeight();
             }
@@ -5232,7 +5233,19 @@ && nativeEvaluateLayersAnimations(mNativeClass)) {
         }
     }
 
+    private void ensureSelectionHandles() {
+        if (mSelectHandleCenter == null) {
+            mSelectHandleCenter = mContext.getResources().getDrawable(
+                    com.android.internal.R.drawable.text_select_handle_middle);
+            mSelectHandleLeft = mContext.getResources().getDrawable(
+                    com.android.internal.R.drawable.text_select_handle_left);
+            mSelectHandleRight = mContext.getResources().getDrawable(
+                    com.android.internal.R.drawable.text_select_handle_right);
+        }
+    }
+
     private void drawTextSelectionHandles(Canvas canvas) {
+        ensureSelectionHandles();
         int[] handles = new int[4];
         getSelectionHandles(handles);
         int start_x = contentToViewDimension(handles[0]);
@@ -5241,30 +5254,18 @@ private void drawTextSelectionHandles(Canvas canvas) {
         int end_y = contentToViewDimension(handles[3]);
 
         if (mIsCaretSelection) {
-            if (mSelectHandleCenter == null) {
-                mSelectHandleCenter = mContext.getResources().getDrawable(
-                        com.android.internal.R.drawable.text_select_handle_middle);
-            }
             // Caret handle is centered
             start_x -= (mSelectHandleCenter.getIntrinsicWidth() / 2);
             mSelectHandleCenter.setBounds(start_x, start_y,
                     start_x + mSelectHandleCenter.getIntrinsicWidth(),
                     start_y + mSelectHandleCenter.getIntrinsicHeight());
             mSelectHandleCenter.draw(canvas);
         } else {
-            if (mSelectHandleLeft == null) {
-                mSelectHandleLeft = mContext.getResources().getDrawable(
-                        com.android.internal.R.drawable.text_select_handle_left);
-            }
             // Magic formula copied from TextView
             start_x -= (mSelectHandleLeft.getIntrinsicWidth() * 3) / 4;
             mSelectHandleLeft.setBounds(start_x, start_y,
                     start_x + mSelectHandleLeft.getIntrinsicWidth(),
                     start_y + mSelectHandleLeft.getIntrinsicHeight());
-            if (mSelectHandleRight == null) {
-                mSelectHandleRight = mContext.getResources().getDrawable(
-                        com.android.internal.R.drawable.text_select_handle_right);
-            }
             end_x -= mSelectHandleRight.getIntrinsicWidth() / 4;
             mSelectHandleRight.setBounds(end_x, end_y,
                     end_x + mSelectHandleRight.getIntrinsicWidth(),