PLATFORM_FILE_ERROR_EXISTS 445 base/platform_file_posix.cc return PLATFORM_FILE_ERROR_EXISTS; PLATFORM_FILE_ERROR_EXISTS 78 base/platform_file_unittest.cc EXPECT_EQ(PLATFORM_FILE_ERROR_EXISTS, error_code); PLATFORM_FILE_ERROR_EXISTS 308 base/platform_file_win.cc return PLATFORM_FILE_ERROR_EXISTS;