Fix heap overflow caused by small buffer size

gpu/command_buffer/service/gles2_cmd_decoder.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder.cc b/gpu/command_buffer/service/gles2_cmd_decoder.cc
index 3140d6f55dedf9f0609dc6705a4749d76afa771f..d05520b79f4dc329ba733347bbf4e946757f8c5a 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder.cc
@@ -14181,8 +14181,8 @@ void GLES2DecoderImpl::DoCopyTexImage2D(
         target != GL_TEXTURE_CUBE_MAP_POSITIVE_X) {
       for (int i = 0; i < 2; ++i) {
         TextureManager::DoTexImageArguments args = {
-          target, i, final_internal_format, 1, 1, 1, border,
-          format, type, nullptr, 1, 0,
+          target, i, final_internal_format, width, height, 1, border,
+          format, type, nullptr, pixels_size, 0,
           TextureManager::DoTexImageArguments::kTexImage2D };
         texture_manager()->WorkaroundCopyTexImageCubeMap(&texture_state_,
             &state_, &framebuffer_state_, texture_ref, func_name, args);