Disable fullscreen video in OverlayPanels

chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/OverlayPanel.java

Index: chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/OverlayPanel.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/OverlayPanel.java b/chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/OverlayPanel.java
index 2fddd228afa4344095d46688581c5a0a504a5bcc..a97aa08cbb29998f9831d15a791f2557c11de2ff 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/OverlayPanel.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/OverlayPanel.java
@@ -6,6 +6,7 @@ package org.chromium.chrome.browser.compositor.bottombar;
 
 import android.app.Activity;
 import android.content.Context;
+import android.view.View;
 import android.view.View.MeasureSpec;
 
 import org.chromium.base.ActivityState;
@@ -17,6 +18,7 @@ import org.chromium.chrome.browser.compositor.bottombar.OverlayPanelManager.Pane
 import org.chromium.chrome.browser.compositor.layouts.LayoutUpdateHost;
 import org.chromium.chrome.browser.compositor.scene_layer.SceneLayer;
 import org.chromium.chrome.browser.tab.Tab;
+import org.chromium.content.browser.ContentVideoViewEmbedder;
 import org.chromium.content.browser.ContentViewClient;
 import org.chromium.content.browser.ContentViewCore;
 import org.chromium.content_public.common.TopControlsState;
@@ -334,6 +336,27 @@ public class OverlayPanel extends OverlayPanelAnimation implements ActivityState
                             MeasureSpec.EXACTLY);
                 }
             }
+
+            @Override
+            public ContentVideoViewEmbedder getContentVideoViewEmbedder() {
+                // TODO(mdjones): Possibly enable fullscreen video in overlay panels rather than
+                // passing an empty implementation.
+                return new ContentVideoViewEmbedder() {
+                    @Override
+                    public void enterFullscreenVideo(View view) {}
+
+                    @Override
+                    public void exitFullscreenVideo() {}
+
+                    @Override
+                    public View getVideoLoadingProgressView() {
+                        return null;
+                    }
+
+                    @Override
+                    public void setSystemUiVisibility(boolean enterFullscreen) {}
+                };
+            }
         });
 
         return content;