Question: Who popularized the traditional Chinese martial art specializing in close range combat?

Context paragraphs:
Central Guoshu Institute: The Central Guoshu Institute (); was established in Nanjing by the Kuomintang government of the Republic of China in 1928 for the propagation of Chinese martial arts, and was an important center of martial arts during the Nanjing decade.  "Guoshu" (also spelled "Kuoshu") 國術 "national art" was the term for martial arts adopted by the Republic of China at the time.  The institute was headed by five selected masters, including Fu Chen Sung, Wan Laisheng, Gu Ruzhang, Li Liejun (1882–1946), Li Jinglin, and Chang Chih Chiang (Zhang Zhijiang , 1882–1966).  Along with the Jing Wu Athletic Association (established in 1910), the academy played a crucial role in the transmission of traditional Chinese martial arts into the 20th century.

Wing Chun: Wing Chun () is a traditional Southern Chinese martial art specializing in close range combat.  It is known for being economical, direct and efficient.  .

San Soo: Kung Fu San Soo (功夫散手) is a martial art based on techniques from all over China, both Northern and Southern Chinese martial arts systems.  The 5 Family Fist (五家拳) is an important part of San Soo, and is commonly practiced in the Taishan region of the Guangdong province.  Kung Fu San Soo as taught in China has many traditional forms and isometric exercises in its training regimen.  Chin Siu Dek (Jimmy H. Woo), the man responsible for bringing Kung Fu San Soo to America, did not believe in the animal styles and hence taught only the 5 family styles (蔡李何佛雄).  His words were, "We fight like men, not animals."  The name "Kung Fu San Soo" itself was chosen by Woo to simplify the pronunciation and meaning for American students, rather than using the complete names of the 5 families.  Kung Fu San Soo originated for use in military combat and uses techniques designed to swiftly disable an attacker.  Due to the fact San Soo is a practical martial art for self-defense and the techniques are intended for real fight scenarios, there are no competitions or tournaments for San Soo Kung Fu.

Chow Gar: Chow Gar Tong Long (周家螳螂) is a southern Chinese martial art and is one of the four major schools in Southern Praying Mantis.  It is an aggressive style with emphasis on close range fighting.  These skills are developed by utilizing a range of training techniques which have been developed over several centuries.

Gu Ruzhang: Gu Ruzhang or Ku Yu-Cheung (; 1894–1952) was a Chinese martial artist who disseminated the Bak Siu Lum (Northern Shaolin) martial arts system across southern China in the early 20th century.  Gu was known for his expertise in Iron Palm** hand conditioning among other Chinese martial art training exercises.  He has become a legendary heroic figure in some Chinese martial arts communities.

List of Chinese martial arts: This page contains a concise listing of individual systems of traditional Chinese martial arts (传统中国武术 chuántǒng Zhōngguó wǔshù).  Listings of various branches / lineages of a martial art system are located on a corresponding Wikipedia page which details the history of the system.  The following list of traditional Chinese martial arts (传统中国武术 chuántǒng Zhōngguó wǔshù) is by no means exhaustive.

Straight blast: The straight blast is a martial arts technique popularized by Bruce Lee and associated with Wing Chun Kung Fu and Jeet Kune Do.

Sanshou: Sanshou (Wushu Sanshou), also known as Sanda (Wushu Sanda), Chinese boxing or Chinese kickboxing, is a Chinese self-defense system and combat sport.  Wushu Sanshou is a martial art which was originally developed by the Chinese military based upon the study and practices of traditional Kung fu and modern combat fighting techniques; it combines full-contact kickboxing, which includes close range and rapid successive punches and kicks, with wrestling, takedowns, throws, sweeps, kick catches, and in some competitions, even elbow and knee strikes.

Lai Tung Pai: Lai Tung Pai黎峒派 (sometimes spelled Lai Tong Pai, also known as Panquan 蟠拳, Poon (Pun) Kuen 盤拳 or encircle or coiling fist) is a martial art of Chinese origin, coming from the Sil Lum (Mandarin Shaolin) tradition in the Guangdong providence of China.  The art was developed at the Henan Sil Lum Temple and then was moved to the Hoi Tung Temple in Kwangtung when the former was burned down during the Ching Dynasty.  The dates are not certain, as the only living person, Kong Hoi (surname given first as in Chinese tradition), studied at the Hoi Tung Temple in the early 20th century, but it is believed the style originated in the early 1600s.  Grandmaster Kong is a member of the Hong Kong Chinese Martial Art Association, now named the Hong Kong Chinese Martial Arts Dragon and Lion Dancing Association Ltd.

Wushu (sport): Wushu () is a martial art and a full-contact sport derived from traditional Chinese martial arts.  It was developed in China after 1949, in an effort to standardize the practice of traditional Chinese martial arts, although attempts to structure the various decentralized martial arts traditions date back earlier, when the Central Guoshu Institute was established at Nanking in 1928.  The term wushu is Chinese for "martial arts" (武 "Wu" = military or martial, 术 "Shu" = art).  In contemporary times, wushu has become an international sport through the International Wushu Federation (IWUF), which holds the World Wushu Championships every two years; the first World Championships were held in 1991 in Beijing and won by Yuan Wen Qing.

Supporting paragraphs: Straight blast Wing Chun
Answer: Bruce Lee