Labeled WebGraphicsContext3D context.

content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.cc

Index: content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.cc
diff --git a/content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.cc b/content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.cc
index e2bf5046fa8ec2a4962e938b8300413f86446ba4..7ceb366ae5cf4381de6f268dc5419d558b80bec9 100644
--- a/content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.cc
+++ b/content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.cc
@@ -154,6 +154,8 @@ bool WebGraphicsContext3DCommandBufferImpl::MaybeInitializeGL() {
                  weak_ptr_factory_.GetWeakPtr()));
 
   real_gl_->SetErrorMessageCallback(getErrorMessageCallback());
+  real_gl_->TraceBeginCHROMIUM("WebGraphicsContext3D",

[no sievers, 2015/12/08 22:17:42]

and this doesn't need 'end'?

[David Yen, 2015/12/08 22:20:40]

It automatically ends when the context is destroyed so it is ok for top level
context traces.

+                               "CommandBufferContext");
 
   visible_ = true;
   initialized_ = true;