p1 mus+ash chrome renders ui and content

content/browser/compositor/gpu_process_transport_factory.cc

 // Copyright 2014 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/compositor/gpu_process_transport_factory.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 10 matching lines @@
 #include "cc/surfaces/onscreen_display_client.h"
 #include "cc/surfaces/surface_display_output_surface.h"
 #include "cc/surfaces/surface_manager.h"
 #include "content/browser/compositor/browser_compositor_output_surface.h"
 #include "content/browser/compositor/browser_compositor_overlay_candidate_validator.h"
 #include "content/browser/compositor/gpu_browser_compositor_output_surface.h"
 #include "content/browser/compositor/gpu_surfaceless_browser_compositor_output_surface.h"
 #include "content/browser/compositor/offscreen_browser_compositor_output_surface.h"
 #include "content/browser/compositor/reflector_impl.h"
 #include "content/browser/compositor/software_browser_compositor_output_surface.h"
+#include "content/browser/compositor/software_output_device_mus.h"
 #include "content/browser/gpu/browser_gpu_channel_host_factory.h"
 #include "content/browser/gpu/browser_gpu_memory_buffer_manager.h"
 #include "content/browser/gpu/compositor_util.h"
 #include "content/browser/gpu/gpu_data_manager_impl.h"
 #include "content/browser/gpu/gpu_surface_tracker.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/common/gpu/client/context_provider_command_buffer.h"
 #include "content/common/gpu/client/gl_helper.h"
 #include "content/common/gpu/client/gpu_channel_host.h"
 #include "content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.h"
@@ skipping 100 matching lines @@
       CAUSE_FOR_GPU_LAUNCH_WEBGRAPHICSCONTEXT3DCOMMANDBUFFERIMPL_INITIALIZE;
   scoped_refptr<GpuChannelHost> gpu_channel_host(
       BrowserGpuChannelHostFactory::instance()->EstablishGpuChannelSync(cause));
   return CreateContextCommon(gpu_channel_host, 0);
 #endif  // OS_ANDROID
 }
 
 scoped_ptr<cc::SoftwareOutputDevice>
 GpuProcessTransportFactory::CreateSoftwareOutputDevice(
     ui::Compositor* compositor) {
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+          "mojo-platform-channel-handle")) {
+    return scoped_ptr<cc::SoftwareOutputDevice>(
+        new SoftwareOutputDeviceMus(compositor));
+  }

[ccameron, 2015/11/13 23:15:41]

Can we get a IsRunningInMojoRunner() similar to the one in
chrome/browser/mojo_runner_util.h in content?

+
 #if defined(OS_WIN)
   return scoped_ptr<cc::SoftwareOutputDevice>(
       new SoftwareOutputDeviceWin(software_backing_.get(), compositor));
 #elif defined(USE_OZONE)
   return scoped_ptr<cc::SoftwareOutputDevice>(new SoftwareOutputDeviceOzone(
       compositor));
 #elif defined(USE_X11)
   return scoped_ptr<cc::SoftwareOutputDevice>(new SoftwareOutputDeviceX11(
       compositor));
 #elif defined(OS_MACOSX)
@@ skipping 24 matching lines @@
   // Overlays are only supported through the remote layer API.
   if (ui::RemoteLayerAPISupported()) {
     return make_scoped_ptr(
         new BrowserCompositorOverlayCandidateValidatorMac(widget));
   }
 #endif
   return scoped_ptr<BrowserCompositorOverlayCandidateValidator>();
 }
 
 static bool ShouldCreateGpuOutputSurface(ui::Compositor* compositor) {
+  // Chrome running as a mojo app currently can only use software compositing.
+  // TODO(rjkroege): http://crbug.com/548451
+  // TODO(rjkroege): Make IsRunningInMojoRunner callable from content.
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+          "mojo-platform-channel-handle")) {
+    return false;
+  }

[ccameron, 2015/11/13 23:15:41]

Likewise.

+
 #if defined(OS_CHROMEOS)
   // Software fallback does not happen on Chrome OS.
   return true;
 #endif
 
 #if defined(OS_WIN)
   if (::GetProp(compositor->widget(), kForceSoftwareCompositor) &&
       ::RemoveProp(compositor->widget(), kForceSoftwareCompositor))
     return false;
 #endif
@@ skipping 447 matching lines @@
   FOR_EACH_OBSERVER(ImageTransportFactoryObserver,
                     observer_list_,
                     OnLostResources());
 
   // Kill things that use the shared context before killing the shared context.
   lost_gl_helper.reset();
   lost_shared_main_thread_contexts  = NULL;
 }
 
 }  // namespace content