Mojo framework for AndroidOverlay.

content/public/android/java/src/org/chromium/content/browser/InterfaceRegistrarImpl.java

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.content.browser;
 
 import android.content.Context;
 
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.base.annotations.JNINamespace;
+import org.chromium.content.browser.androidoverlay.AndroidOverlayProviderImpl;
 import org.chromium.content.browser.shapedetection.FaceDetectionProviderImpl;
 import org.chromium.content_public.browser.InterfaceRegistrar;
 import org.chromium.content_public.browser.WebContents;
 import org.chromium.device.BatteryMonitor;
 import org.chromium.device.battery.BatteryMonitorFactory;
 import org.chromium.device.mojom.VibrationManager;
 import org.chromium.device.nfc.mojom.Nfc;
 import org.chromium.device.vibration.VibrationManagerImpl;
+import org.chromium.media.mojom.AndroidOverlayProvider;
 import org.chromium.mojo.system.impl.CoreImpl;
 import org.chromium.services.service_manager.InterfaceRegistry;
 import org.chromium.shape_detection.mojom.FaceDetectionProvider;
 
 @JNINamespace("content")
 class InterfaceRegistrarImpl {
 
     private static boolean sHasRegisteredRegistrars;
 
     @CalledByNative
@@ skipping 25 matching lines @@
     private static class ContentContextInterfaceRegistrar implements InterfaceRegistrar<Context> {
         @Override
         public void registerInterfaces(
                 InterfaceRegistry registry, final Context applicationContext) {
             registry.addInterface(
                     VibrationManager.MANAGER, new VibrationManagerImpl.Factory(applicationContext));
             registry.addInterface(
                     BatteryMonitor.MANAGER, new BatteryMonitorFactory(applicationContext));
             registry.addInterface(FaceDetectionProvider.MANAGER,
                     new FaceDetectionProviderImpl.Factory(applicationContext));
+            registry.addInterface(AndroidOverlayProvider.MANAGER,

[boliu, 2017/02/17 21:20:51]

this makes Overlay accessible to renderer as well, right? do we need a separate
registrar just for gpu?

[liberato (no reviews please), 2017/02/22 16:25:01]

as far as i can tell, it does not make it available.  one must also add the
interface in remote interfaces in RenderProcessHostImpl, and update the service
manifest to allow connections from the renderer.

i'm still a little sketchy, but it seems like this makes it available in the
browser.  the other steps advertise it to the other processes.

+                    new AndroidOverlayProviderImpl.Factory(applicationContext));
             // TODO(avayvod): Register the PresentationService implementation here.
         }
     }
 
     private static class ContentWebContentsInterfaceRegistrar
             implements InterfaceRegistrar<WebContents> {
         @Override
         public void registerInterfaces(InterfaceRegistry registry, final WebContents webContents) {
             registry.addInterface(Nfc.MANAGER, new NfcFactory(webContents));
         }
     }
 }