Update edit text size when the text changes so scroll works.

 Bug 6176413
 Webkit Change: I487322ca9578c003f937b92ca4e8d46d34ea8c78

Change-Id: I6b8f244cd747d6d19c261d685a3cfb9ef4d71ec3

Author: George Mount

core/java/android/webkit/WebViewClassic.java

@@ -1254,6 +1254,7 @@ public void onTrimMemory(int level) {
     static final int FOCUS_NODE_CHANGED                 = 147;
     static final int AUTOFILL_FORM                      = 148;
     static final int ANIMATE_TEXT_SCROLL                = 149;
+    static final int EDIT_TEXT_SIZE_CHANGED             = 150;
 
     private static final int FIRST_PACKAGE_MSG_ID = SCROLL_TO_MSG_ID;
     private static final int LAST_PACKAGE_MSG_ID = HIT_TEST_RESULT;
@@ -8504,6 +8505,12 @@ public void handleMessage(Message msg) {
                     computeEditTextScroll();
                     break;
 
+                case EDIT_TEXT_SIZE_CHANGED:
+                    if (msg.arg1 == mFieldPointer) {
+                        mEditTextContent.set((Rect)msg.obj);
+                    }
+                    break;
+
                 default:
                     super.handleMessage(msg);
                     break;

core/java/android/webkit/WebViewCore.java

@@ -2778,6 +2778,18 @@ private void updateTextSelection(int pointer, int start, int end,
         }
     }
 
+    // called by JNI
+    private void updateTextSizeAndScroll(int pointer, int width, int height,
+            int scrollX, int scrollY) {
+        if (mWebView != null) {
+            Rect rect = new Rect(-scrollX, -scrollY, width - scrollX,
+                    height - scrollY);
+            Message.obtain(mWebView.mPrivateHandler,
+                    WebViewClassic.EDIT_TEXT_SIZE_CHANGED, pointer, 0, rect)
+                    .sendToTarget();
+        }
+    }
+
     // called by JNI
     private void clearTextEntry() {
         if (mWebView == null) return;