Delete //gpu/blink/ and WebGraphicsContext3DImpl.

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 fa3a16f1fc034c53ca764110ee090b5e87210efb..01357764c75977c07d89afd429d849f3b75e0599 100644
--- a/content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.cc
+++ b/content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.cc
@@ -27,7 +27,6 @@
 #include "gpu/GLES2/gl2extchromium.h"
 #include "gpu/command_buffer/client/gles2_cmd_helper.h"
 #include "gpu/command_buffer/client/gles2_implementation.h"
-#include "gpu/command_buffer/client/gles2_trace_implementation.h"
 #include "gpu/command_buffer/client/gpu_switches.h"
 #include "gpu/command_buffer/client/shared_memory_limits.h"
 #include "gpu/command_buffer/client/transfer_buffer.h"
@@ -241,8 +240,6 @@ bool WebGraphicsContext3DCommandBufferImpl::CreateContext(
       gles2_helper_.get(), gles2_share_group.get(), transfer_buffer_.get(),
       bind_generates_resource, lose_context_when_out_of_memory,
       support_client_side_arrays, command_buffer_.get()));
-  SetGLInterface(real_gl_.get());
-
   if (!real_gl_->Initialize(memory_limits.start_transfer_buffer_size,
                             memory_limits.min_transfer_buffer_size,
                             memory_limits.max_transfer_buffer_size,
@@ -254,11 +251,6 @@ bool WebGraphicsContext3DCommandBufferImpl::CreateContext(
   if (add_to_share_group)
     share_group_->AddContextLocked(this);
 
-  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kEnableGpuClientTracing)) {
-    trace_gl_.reset(new gpu::gles2::GLES2TraceImplementation(GetGLInterface()));
-    SetGLInterface(trace_gl_.get());
-  }
   return true;
 }
 
@@ -280,17 +272,6 @@ bool WebGraphicsContext3DCommandBufferImpl::InitializeOnCurrentThread(
 void WebGraphicsContext3DCommandBufferImpl::Destroy() {
   share_group_->RemoveContext(this);
 
-  gpu::gles2::GLES2Interface* gl = GetGLInterface();

[danakj, 2016/04/21 00:38:42]

Since we no longer know the tracing interface only the GLES2Impl here, I moved
the flush to the ContextProviderCommandBuffer destructor.

-  if (gl) {
-    // First flush the context to ensure that any pending frees of resources
-    // are completed. Otherwise, if this context is part of a share group,
-    // those resources might leak. Also, any remaining side effects of commands
-    // issued on this context might not be visible to other contexts in the
-    // share group.
-    gl->Flush();
-    SetGLInterface(nullptr);
-  }
-
   trace_gl_.reset();
   real_gl_.reset();
   transfer_buffer_.reset();