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 030a0a55bf0a10e9dbe748bc7c357e23b0e7f600..1009072aa8d9daff7d120327238ab822de19f7bd 100644
--- a/android_webview/java/src/org/chromium/android_webview/AwContents.java
+++ b/android_webview/java/src/org/chromium/android_webview/AwContents.java
@@ -47,6 +47,7 @@ import org.chromium.android_webview.permission.AwGeolocationCallback;
 import org.chromium.android_webview.permission.AwPermissionRequest;
 import org.chromium.base.LocaleUtils;
 import org.chromium.base.Log;
+import org.chromium.base.ObserverList;
 import org.chromium.base.ThreadUtils;
 import org.chromium.base.TraceEvent;
 import org.chromium.base.VisibleForTesting;
@@ -287,6 +288,9 @@ public class AwContents implements SmartClipProvider,
     private final AwSettings mSettings;
     private final ScrollAccessibilityHelper mScrollAccessibilityHelper;
 
+    private final ObserverList<PopupTouchHandleDrawable> mTouchHandleDrawables =
+            new ObserverList<>();
+
     private boolean mIsPaused;
     private boolean mIsViewVisible;
     private boolean mIsWindowVisible;
@@ -924,6 +928,9 @@ public class AwContents implements SmartClipProvider,
             mAwPdfExporter.setContainerView(mContainerView);
         }
         mWebContentsDelegate.setContainerView(mContainerView);
+        for (PopupTouchHandleDrawable drawable: mTouchHandleDrawables) {
+            drawable.onContainerViewChanged(newContainerView);
+        }
         onContainerViewChanged();
     }
 
@@ -2673,6 +2680,13 @@ public class AwContents implements SmartClipProvider,
         mFavicon = bitmap;
     }
 
+    @CalledByNative
+    private long onCreateTouchHandle() {
+        PopupTouchHandleDrawable drawable =
+                PopupTouchHandleDrawable.create(mTouchHandleDrawables, mContentViewCore, mDIPScale);
+        return drawable.getNativeDrawable();
+    }
+
     /** Callback for generateMHTML. */
     @CalledByNative
     private static void generateMHTMLCallback(