Revert https://codereview.chromium.org/1291903002 (protobuf roll).

third_party/protobuf/cmake/CMakeLists.txt

Index: third_party/protobuf/cmake/CMakeLists.txt
diff --git a/third_party/protobuf/cmake/CMakeLists.txt b/third_party/protobuf/cmake/CMakeLists.txt
deleted file mode 100644
index d36292df689c9d8b774b9402bd9cb137f342be19..0000000000000000000000000000000000000000
--- a/third_party/protobuf/cmake/CMakeLists.txt
+++ /dev/null
@@ -1,78 +0,0 @@
-cmake_minimum_required(VERSION 2.8)
-
-project(protobuf C CXX)
-
-option(BUILD_TESTING "Build tests" ON)
-option(BUILD_SHARED_LIBS "Build Shared Libraries" OFF)
-if (MSVC)
-  option(ZLIB "Build with zlib support" OFF)
-endif (MSVC)
-
-add_definitions(-DGOOGLE_PROTOBUF_CMAKE_BUILD)
-
-find_package(Threads REQUIRED)
-if (CMAKE_USE_PTHREADS_INIT)
-  add_definitions(-DHAVE_PTHREAD)
-endif (CMAKE_USE_PTHREADS_INIT)
-
-if (MSVC)
-  if (ZLIB)
-    set(HAVE_ZLIB 1)
-    find_path(ZLIB_INCLUDE_DIRECTORIES zlib.h ${protobuf_SOURCE_DIR})
-    find_library(ZLIB_LIBRARIES zdll ${protobuf_SOURCE_DIR})
-  else (ZLIB)
-    set(HAVE_ZLIB 0)
-  endif (ZLIB)
-else (MSVC)
-  find_package(ZLIB)
-  if (ZLIB_FOUND)
-    set(HAVE_ZLIB 1)
-  else (ZLIB_FOUND)
-    set(HAVE_ZLIB 0)
-    # Explicitly set these to empty (override NOT_FOUND) so cmake doesn't
-    # complain when we use them later.
-    set(ZLIB_INCLUDE_DIRECTORIES)
-    set(ZLIB_LIBRARIES)
-  endif (ZLIB_FOUND)
-endif (MSVC)
-
-if (HAVE_ZLIB)
-  add_definitions(-DHAVE_ZLIB)
-endif (HAVE_ZLIB)
-
-if (MSVC)
-  if (BUILD_SHARED_LIBS)
-    add_definitions(-DPROTOBUF_USE_DLLS)
-  endif (BUILD_SHARED_LIBS)
-  add_definitions(/wd4244 /wd4267 /wd4018 /wd4355 /wd4800 /wd4251 /wd4996 /wd4146 /wd4305)
-endif (MSVC)
-
-if (MSVC)
-  string(REPLACE "/" "\\" PROTOBUF_SOURCE_WIN32_PATH ${protobuf_SOURCE_DIR})
-  string(REPLACE "/" "\\" PROTOBUF_BINARY_WIN32_PATH ${protobuf_BINARY_DIR})
-  configure_file(extract_includes.bat.in extract_includes.bat)
-endif (MSVC)
-
-get_filename_component(protobuf_source_dir ${protobuf_SOURCE_DIR} PATH)
-
-include_directories(
-  ${ZLIB_INCLUDE_DIRECTORIES}
-  ${protobuf_BINARY_DIR}
-  ${protobuf_source_dir}/src)
-
-if (MSVC)
-  # Add the "lib" prefix for generated .lib outputs.
-  set(LIB_PREFIX lib)
-else (MSVC)
-  # When building with "make", "lib" prefix will be added automatically by
-  # the build tool.
-  set(LIB_PREFIX)
-endif (MSVC)
-
-include(libprotobuf-lite.cmake)
-include(libprotobuf.cmake)
-include(libprotoc.cmake)
-include(protoc.cmake)
-if (BUILD_TESTING)
-  include(tests.cmake)
-endif (BUILD_TESTING)