Request context sharing via content::ContextProviderCommandBuffer

content/browser/renderer_host/compositor_impl_android.cc

 // Copyright (c) 2012 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 "content/browser/renderer_host/compositor_impl_android.h"
 
 #include <android/bitmap.h>
 #include <android/native_window_jni.h>
 #include <stdint.h>
 
@@ skipping 531 matching lines @@
 
   BrowserGpuChannelHostFactory* factory =
       BrowserGpuChannelHostFactory::instance();
   // This channel might be lost (and even if it isn't right now, it might
   // still get marked as lost from the IO thread, at any point in time really).
   // But from here on just try and always lead to either
   // DidInitializeOutputSurface() or DidFailToInitializeOutputSurface().
   scoped_refptr<gpu::GpuChannelHost> gpu_channel_host(factory->GetGpuChannel());
 
   GURL url("chrome://gpu/CompositorImpl::CreateOutputSurface");
-  constexpr bool share_resources = false;
   constexpr bool automatic_flushes = false;
 
   constexpr size_t kBytesPerPixel = 4;
   const size_t full_screen_texture_size_in_bytes =
       gfx::DeviceDisplayInfo().GetDisplayHeight() *
       gfx::DeviceDisplayInfo().GetDisplayWidth() * kBytesPerPixel;
 
   gpu::SharedMemoryLimits limits;
   // This limit is meant to hold the contents of the display compositor
   // drawing the scene. See discussion here:
   // https://codereview.chromium.org/1900993002/diff/90001/content/browser/renderer_host/compositor_impl_android.cc?context=3&column_width=80&tab_spaces=8
   limits.command_buffer_size = 64 * 1024;
   // These limits are meant to hold the uploads for the browser UI without
   // any excess space.
   limits.start_transfer_buffer_size = 64 * 1024;
   limits.min_transfer_buffer_size = 64 * 1024;
   limits.max_transfer_buffer_size = full_screen_texture_size_in_bytes;
   // Texture uploads may use mapped memory so give a reasonable limit for them.
   limits.mapped_memory_reclaim_limit = full_screen_texture_size_in_bytes;
 
   scoped_refptr<ContextProviderCommandBuffer> context_provider(
       new ContextProviderCommandBuffer(
           base::WrapUnique(new WebGraphicsContext3DCommandBufferImpl(
               surface_handle_, url, gpu_channel_host.get(), attributes,
-              gfx::PreferIntegratedGpu, share_resources, automatic_flushes,
-              nullptr)),
-          limits, DISPLAY_COMPOSITOR_ONSCREEN_CONTEXT));
+              gfx::PreferIntegratedGpu, automatic_flushes)),
+          limits, nullptr, DISPLAY_COMPOSITOR_ONSCREEN_CONTEXT));
   DCHECK(context_provider.get());
 
   std::unique_ptr<cc::OutputSurface> real_output_surface(
       new OutputSurfaceWithoutParent(
           this, context_provider,
           base::Bind(&CompositorImpl::PopulateGpuCapabilities,
                      base::Unretained(this)),
           base::WrapUnique(new ExternalBeginFrameSource(this))));
 
   cc::SurfaceManager* manager = GetSurfaceManager();
@@ skipping 92 matching lines @@
 void CompositorImpl::SetNeedsAnimate() {
   needs_animate_ = true;
   if (!host_->visible())
     return;
 
   TRACE_EVENT0("compositor", "Compositor::SetNeedsAnimate");
   host_->SetNeedsAnimate();
 }
 
 }  // namespace content