Plumb client side synthesized GL messages to JS Console

gpu/command_buffer/client/gles2_implementation.cc

 // Copyright (c) 2012 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.
 
 // A class to emulate GLES2 over command buffers.
 
 #include "../client/gles2_implementation.h"
 
 #include <map>
 #include <set>
@@ skipping 589 matching lines @@
       bound_renderbuffer_(0),
       bound_array_buffer_id_(0),
       bound_element_array_buffer_id_(0),
       client_side_array_id_(0),
       client_side_element_array_id_(0),
       error_bits_(0),
       debug_(false),
       sharing_resources_(share_resources),
       bind_generates_resource_(bind_generates_resource),
       use_count_(0),
-      current_query_(NULL) {
+      current_query_(NULL),
+      error_message_callback_(NULL) {
   GPU_DCHECK(helper);
   GPU_DCHECK(transfer_buffer);
   GPU_CLIENT_LOG_CODE_BLOCK({
     debug_ = CommandLine::ForCurrentProcess()->HasSwitch(
         switches::kEnableGPUClientLogging);
   });
 
   memset(&reserved_ids_, 0, sizeof(reserved_ids_));
 }
 
@@ skipping 201 matching lines @@
   }
   return error;
 }
 
 void GLES2Implementation::SetGLError(GLenum error, const char* msg) {
   GPU_CLIENT_LOG("[" << this << "] Client Synthesized Error: "
                  << GLES2Util::GetStringError(error) << ": " << msg);
   if (msg) {
     last_error_ = msg;
   }
+  if (error_message_callback_) {
+    std::string temp(GLES2Util::GetStringError(error)  + " : " + msg);
+    error_message_callback_->OnErrorMessage(temp.c_str(), 0);
+  }
   error_bits_ |= GLES2Util::GLErrorToErrorBit(error);
 }
 
 bool GLES2Implementation::GetBucketContents(uint32 bucket_id,
                                             std::vector<int8>* data) {
   TRACE_EVENT0("gpu", "GLES2::GetBucketContents");
   GPU_DCHECK(data);
   typedef cmd::GetBucketSize::Result Result;
   Result* result = GetResultAs<Result*>();
   if (!result) {
@@ skipping 2408 matching lines @@
     helper_->BindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
   }
 #else
   helper_->DrawElementsInstancedANGLE(
       mode, count, type, ToGLuint(indices), primcount);
 #endif
 }
 
 }  // namespace gles2
 }  // namespace gpu