Fix SafeAdd and SafeMultiply

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 "base/bits.h"
 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
 #include "gpu/command_buffer/service/feature_info.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
 #include "gpu/command_buffer/service/mailbox_manager.h"
@@ skipping 341 matching lines @@
     GLint xoffset,
     GLint yoffset,
     GLsizei width,
     GLsizei height,
     GLenum format,
     GLenum type) const {
   size_t face_index = GLTargetToFaceIndex(face);
   if (level >= 0 && face_index < level_infos_.size() &&
       static_cast<size_t>(level) < level_infos_[face_index].size()) {
     const LevelInfo& info = level_infos_[GLTargetToFaceIndex(face)][level];
-    GLint right;
-    GLint top;
-    return SafeAdd(xoffset, width, &right) &&
-           SafeAdd(yoffset, height, &top) &&
+    int32 right;
+    int32 top;
+    return SafeAddInt32(xoffset, width, &right) &&
+           SafeAddInt32(yoffset, height, &top) &&
            xoffset >= 0 &&
            yoffset >= 0 &&
            right <= info.width &&
            top <= info.height &&
            format == info.internal_format &&
            type == info.type;
   }
   return false;
 }
 
@@ skipping 694 matching lines @@
   return false;
 }
 
 GLsizei TextureManager::ComputeMipMapCount(
     GLsizei width, GLsizei height, GLsizei depth) {
   return 1 + base::bits::Log2Floor(std::max(std::max(width, height), depth));
 }
 
 }  // namespace gles2
 }  // namespace gpu