Support for Adaptive Handle Orientation

content/public/android/java/src/org/chromium/content/browser/input/HandleViewResources.java

Index: content/public/android/java/src/org/chromium/content/browser/input/HandleViewResources.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/input/HandleViewResources.java b/content/public/android/java/src/org/chromium/content/browser/input/HandleViewResources.java
index 926cfceeb2fb12065ef956cb40cc11e7884cfdeb..a661af43e51adf1f19e6af6c40bcd258d6d90a55 100644
--- a/content/public/android/java/src/org/chromium/content/browser/input/HandleViewResources.java
+++ b/content/public/android/java/src/org/chromium/content/browser/input/HandleViewResources.java
@@ -21,6 +21,11 @@ import org.chromium.base.JNINamespace;
  */
 @JNINamespace("content")
 public class HandleViewResources {
+    // Android handle drawables have a transparent horizontal padding,
+    // which is one-fourth of the image. This variable is to take the
+    // padding into account while calculating the handle origin position.
+    private static final float HANDLE_HORIZONTAL_PADDING = 0.25f;
+
     private static final int[] LEFT_HANDLE_ATTRS = {
         android.R.attr.textSelectHandleLeft,
     };
@@ -96,6 +101,11 @@ public class HandleViewResources {
     }
 
     @CalledByNative
+    public static float getHandleHorizontalPadding() {
+        return HANDLE_HORIZONTAL_PADDING;
+    }
+
+    @CalledByNative
     private static Bitmap getLeftHandleBitmap(Context context) {
         return getHandleBitmap(context, LEFT_HANDLE_ATTRS);
     }