gpu: Add out-of-line copy ctors for complex classes.

gpu/command_buffer/service/texture_definition.cc

 // Copyright 2014 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_definition.h"
 
 #include <stdint.h>
 
 #include <list>
 
@@ skipping 292 matching lines @@
       internal_format(internal_format),
       width(width),
       height(height),
       depth(depth),
       border(border),
       format(format),
       type(type),
       cleared_rect(cleared_rect) {
 }
 
+TextureDefinition::LevelInfo::LevelInfo(const LevelInfo& other) = default;
+
 TextureDefinition::LevelInfo::~LevelInfo() {}
 
 TextureDefinition::TextureDefinition()
     : version_(0),
       target_(0),
       min_filter_(0),
       mag_filter_(0),
       wrap_s_(0),
       wrap_t_(0),
       usage_(0),
@@ skipping 27 matching lines @@
                                  first_face.level_infos[0].height)));
     texture->SetLevelImage(target_, 0, gl_image.get(), Texture::BOUND);
   }
 
   const Texture::LevelInfo& level = first_face.level_infos[0];
   level_info_ = LevelInfo(level.target, level.internal_format, level.width,
                           level.height, level.depth, level.border, level.format,
                           level.type, level.cleared_rect);
 }
 
+TextureDefinition::TextureDefinition(const TextureDefinition& other) = default;
+
 TextureDefinition::~TextureDefinition() {
 }
 
 Texture* TextureDefinition::CreateTexture() const {
   GLuint texture_id;
   glGenTextures(1, &texture_id);
 
   Texture* texture(new Texture(texture_id));
   UpdateTextureInternal(texture);
 
@@ skipping 87 matching lines @@
   return true;
 }
 
 bool TextureDefinition::SafeToRenderFrom() const {
   return level_info_.cleared_rect.Contains(
       gfx::Rect(level_info_.width, level_info_.height));
 }
 
 }  // namespace gles2
 }  // namespace gpu