Fix for gl programs. An unsuccessful link should report...

gpu/command_buffer/service/gles2_cmd_decoder.cc

 // Copyright (c) 2010 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.
 
 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
 
 #include <stdio.h>
 
 #include <algorithm>
 #include <list>
@@ skipping 3589 matching lines @@
     bound_renderbuffer_->SetInfo(0, internalformat, width, height);
   }
 }
 
 void GLES2DecoderImpl::DoLinkProgram(GLuint program) {
   ProgramManager::ProgramInfo* info = GetProgramInfoNotShader(
       program, "glLinkProgram");
   if (!info) {
     return;
   }
+
+  info->ClearLinkStatus();
   if (!info->CanLink()) {
     return;
   }
+
   glLinkProgram(info->service_id());
   GLint success = 0;
   glGetProgramiv(info->service_id(), GL_LINK_STATUS, &success);
   if (success) {
     info->Update();
-  } else {
-    info->Reset();
   }
 };
 
 void GLES2DecoderImpl::DoTexParameterf(
     GLenum target, GLenum pname, GLfloat param) {
   TextureManager::TextureInfo* info = GetTextureInfoForTarget(target);
   if (!info) {
     SetGLError(GL_INVALID_VALUE, "glTexParameterf: unknown texture");
   } else {
     texture_manager()->SetParameter(
@@ skipping 2461 matching lines @@
   return error::kNoError;
 }
 
 // Include the auto-generated part of this file. We split this because it means
 // we can easily edit the non-auto generated parts right here in this file
 // instead of having to edit some template or the code generator.
 #include "gpu/command_buffer/service/gles2_cmd_decoder_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu