WebVR compositor bypass via BrowserMain context + mailbox

device/vr/android/gvr/gvr_device.cc

 // 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.
 
 #include "device/vr/android/gvr/gvr_device.h"
 
 #include <math.h>
 #include <algorithm>
 
 #include "base/time/time.h"
@@ skipping 38 matching lines @@
   GvrDelegate* delegate = GetGvrDelegate();
   if (delegate)
     delegate->SetWebVRSecureOrigin(secure_origin_);
 }
 
 void GvrDevice::ExitPresent() {
   gvr_provider_->ExitPresent();
   OnExitPresent();
 }
 
-void GvrDevice::SubmitFrame(mojom::VRPosePtr pose) {
+void GvrDevice::SubmitFrame(int16_t frame_index,
+                            const gpu::MailboxHolder& mailbox,
+                            mojom::VRSubmitFrameClientPtr submit_client) {
   GvrDelegate* delegate = GetGvrDelegate();
-  if (delegate)
-    delegate->SubmitWebVRFrame();
+  if (delegate) {
+    delegate->SubmitWebVRFrame(frame_index, mailbox, std::move(submit_client));
+  }
 }
 
 void GvrDevice::UpdateLayerBounds(int16_t frame_index,
                                   mojom::VRLayerBoundsPtr left_bounds,
-                                  mojom::VRLayerBoundsPtr right_bounds) {
+                                  mojom::VRLayerBoundsPtr right_bounds,
+                                  int16_t source_width,
+                                  int16_t source_height) {
   GvrDelegate* delegate = GetGvrDelegate();
   if (!delegate)
     return;
 
   gvr::Rectf left_gvr_bounds;
   left_gvr_bounds.left = left_bounds->left;
   left_gvr_bounds.top = 1.0f - left_bounds->top;
   left_gvr_bounds.right = left_bounds->left + left_bounds->width;
   left_gvr_bounds.bottom = 1.0f - (left_bounds->top + left_bounds->height);
 
   gvr::Rectf right_gvr_bounds;
   right_gvr_bounds.left = right_bounds->left;
   right_gvr_bounds.top = 1.0f - right_bounds->top;
   right_gvr_bounds.right = right_bounds->left + right_bounds->width;
   right_gvr_bounds.bottom = 1.0f - (right_bounds->top + right_bounds->height);
 
+  gvr::Sizei source_size = {source_width, source_height};
   delegate->UpdateWebVRTextureBounds(frame_index, left_gvr_bounds,
-                                     right_gvr_bounds);
+                                     right_gvr_bounds, source_size);
 }
 
 void GvrDevice::GetVRVSyncProvider(mojom::VRVSyncProviderRequest request) {
   GvrDelegate* delegate = GetGvrDelegate();
   if (delegate)
     delegate->OnVRVsyncProviderRequest(std::move(request));
 }
 
 void GvrDevice::OnDelegateChanged() {
   GvrDelegate* delegate = GetGvrDelegate();
   if (!delegate || !delegate->SupportsPresentation())
     OnExitPresent();
   // Notify the clients that this device has changed
   if (delegate)
     delegate->SetWebVRSecureOrigin(secure_origin_);
 
   OnChanged();
 }
 
 GvrDelegate* GvrDevice::GetGvrDelegate() {
   GvrDelegateProvider* delegate_provider = GvrDelegateProvider::GetInstance();
   if (delegate_provider)
     return delegate_provider->GetDelegate();
   return nullptr;
 }
 
 }  // namespace device