Added Destroy() functions for GPUTimer and GPUTracer/GPUTrace.

gpu/command_buffer/service/gles2_cmd_decoder.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder.cc b/gpu/command_buffer/service/gles2_cmd_decoder.cc
index 319e37d0ccd3e24887b0bf099c830d12026e61c2..782773aa619b40dfeb2dc96d0515282d1b12fe84 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder.cc
@@ -3750,6 +3750,9 @@ void GLES2DecoderImpl::Destroy(bool have_context) {
   // by the context group.
   async_pixel_transfer_manager_.reset();
 
+  // Destroy the GPU Tracer which may own some in process GPU Timings.
+  gpu_tracer_->Destroy(have_context);

[vmiura, 2015/03/19 22:56:36]

Should we also delete gpu_tracer_here? gpu_tracer_ = NULL?

[David Yen, 2015/03/25 23:33:58]

Done.

+
   if (group_.get()) {
     framebuffer_manager()->RemoveObserver(this);
     group_->Destroy(this, have_context);