Attach flag to use virtual context for WebGraphicsContext3D

content/common/gpu/gpu_command_buffer_stub.cc

Index: content/common/gpu/gpu_command_buffer_stub.cc
diff --git a/content/common/gpu/gpu_command_buffer_stub.cc b/content/common/gpu/gpu_command_buffer_stub.cc
index 6ae480ba99ec3a2736eaa3392fbd09fee5059282..37b6738b4a719385d8d2b177cb46392b85e0ff1c 100644
--- a/content/common/gpu/gpu_command_buffer_stub.cc
+++ b/content/common/gpu/gpu_command_buffer_stub.cc
@@ -111,6 +111,7 @@ GpuCommandBufferStub::GpuCommandBufferStub(
     int32 surface_id,
     GpuWatchdog* watchdog,
     bool software,
+    bool use_virtual_gl_context,
     const GURL& active_url)
     : channel_(channel),
       handle_(handle),
@@ -122,6 +123,7 @@ GpuCommandBufferStub::GpuCommandBufferStub(
       route_id_(route_id),
       surface_id_(surface_id),
       software_(software),
+      use_virtual_gl_context_(use_virtual_gl_context),
       last_flush_count_(0),
       last_memory_allocation_valid_(false),
       parent_stub_for_initialization_(),
@@ -435,8 +437,9 @@ void GpuCommandBufferStub::OnInitialize(
   }
 
   scoped_refptr<gfx::GLContext> context;
-  if (CommandLine::ForCurrentProcess()->HasSwitch(
-      switches::kEnableVirtualGLContexts) && channel_->share_group()) {
+  if ((CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kEnableVirtualGLContexts) || use_virtual_gl_context_) &&
+      channel_->share_group()) {
     context = channel_->share_group()->GetSharedContext();
     if (!context) {
       context = gfx::GLContext::CreateGLContext(