android_webview: Let AwContents manage TouchHandleDrawable

android_webview/java/src/org/chromium/android_webview/AwContents.java

Index: android_webview/java/src/org/chromium/android_webview/AwContents.java
diff --git a/android_webview/java/src/org/chromium/android_webview/AwContents.java b/android_webview/java/src/org/chromium/android_webview/AwContents.java
index 1f2941492e7de510fa3d59fb7c5674b5883ed8e2..81db590371e12efc2ea4d2b843ac55c944169a75 100644
--- a/android_webview/java/src/org/chromium/android_webview/AwContents.java
+++ b/android_webview/java/src/org/chromium/android_webview/AwContents.java
@@ -81,7 +81,9 @@ import java.io.File;
 import java.lang.annotation.Annotation;
 import java.net.MalformedURLException;
 import java.net.URL;
+import java.util.ArrayList;
 import java.util.HashMap;
+import java.util.List;
 import java.util.Locale;
 import java.util.Map;
 import java.util.Map.Entry;
@@ -288,6 +290,8 @@ public class AwContents implements SmartClipProvider,
     private final AwSettings mSettings;
     private final ScrollAccessibilityHelper mScrollAccessibilityHelper;
 
+    private final List<PopupTouchHandleDrawable> mTouchHandleDrawables = new ArrayList<>();
+
     private boolean mIsPaused;
     private boolean mIsViewVisible;
     private boolean mIsWindowVisible;
@@ -934,6 +938,9 @@ public class AwContents implements SmartClipProvider,
             mAwPdfExporter.setContainerView(mContainerView);
         }
         mWebContentsDelegate.setContainerView(mContainerView);
+        for (PopupTouchHandleDrawable drawable: mTouchHandleDrawables) {
+            drawable.onContainerViewChanged(newContainerView);
+        }
         onContainerViewChanged();
     }
 
@@ -2684,6 +2691,21 @@ public class AwContents implements SmartClipProvider,
         mFavicon = bitmap;
     }
 
+    @CalledByNative
+    private long onCreateTouchHandle() {
+        PopupTouchHandleDrawable drawable =
+                PopupTouchHandleDrawable.create(mContentViewCore, mDIPScale);
+        if (drawable == null) return 0L;
+
+        mTouchHandleDrawables.add(drawable);
+        return drawable.getNativeDrawable();
+    }
+
+    @CalledByNative
+    private void onDestroyAllTouchHandles() {
+        mTouchHandleDrawables.clear();
+    }
+
     /** Callback for generateMHTML. */
     @CalledByNative
     private static void generateMHTMLCallback(