Correctly limit glTexStorage*(GL_TEXTURE_RECTANGLE_ARB, ...) to 1 mip level

gpu/command_buffer/service/texture_manager.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.
 
 #include "gpu/command_buffer/service/texture_manager.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 2086 matching lines @@
   }
   return NULL;
 }
 
 GLsizei TextureManager::ComputeMipMapCount(GLenum target,
                                            GLsizei width,
                                            GLsizei height,
                                            GLsizei depth) {
   switch (target) {
     case GL_TEXTURE_EXTERNAL_OES:
+    case GL_TEXTURE_RECTANGLE_ARB:
       return 1;
     case GL_TEXTURE_3D:
       return 1 +
              base::bits::Log2Floor(std::max(std::max(width, height), depth));
     default:
       return 1 +
              base::bits::Log2Floor(std::max(width, height));
   }
 }
 
@@ skipping 1265 matching lines @@
 uint32_t TextureManager::GetServiceIdGeneration() const {
   return current_service_id_generation_;
 }
 
 void TextureManager::IncrementServiceIdGeneration() {
   current_service_id_generation_++;
 }
 
 }  // namespace gles2
 }  // namespace gpu