Fix the build after 3b52dd1.
Fix the build after 3b52dd1.

Adapt to CL https://codereview.chromium.org/707173004: the code in
3b52dd1 ("Fix the issue about placeholder was not cleared in textarea")
was correct for M40, but we moved to M41 while it was under review and
nobody checked if it still built before merging the pull request.

axinging/crosswalk,jpike88/crosswalk,minggangw/crosswalk,bestwpw/crosswalk,Pluto-tv/crosswalk,ZhengXinCN/crosswalk,jondwillis/crosswalk,PeterWangIntel/crosswalk,pk-sam/crosswalk,stonegithubs/crosswalk,hgl888/crosswalk-efl,siovene/crosswalk,siovene/crosswalk,jondong/crosswalk,minggangw/crosswalk,jpike88/crosswalk,heke123/crosswalk,leonhsl/crosswalk,stonegithubs/crosswalk,xzhan96/crosswalk,darktears/crosswalk,tedshroyer/crosswalk,pk-sam/crosswalk,tedshroyer/crosswalk,chuan9/crosswalk,minggangw/crosswalk,baleboy/crosswalk,amaniak/crosswalk,baleboy/crosswalk,amaniak/crosswalk,tomatell/crosswalk,siovene/crosswalk,alex-zhang/crosswalk,stonegithubs/crosswalk,jpike88/crosswalk,XiaosongWei/crosswalk,Pluto-tv/crosswalk,RafuCater/crosswalk,heke123/crosswalk,rakuco/crosswalk,xzhan96/crosswalk,stonegithubs/crosswalk,zeropool/crosswalk,heke123/crosswalk,PeterWangIntel/crosswalk,marcuspridham/crosswalk,heke123/crosswalk,PeterWangIntel/crosswalk,baleboy/crosswalk,PeterWangIntel/crosswalk,tedshroyer/crosswalk,RafuCater/crosswalk,xzhan96/crosswalk,hgl888/crosswalk-efl,darktears/crosswalk,lincsoon/crosswalk,mrunalk/crosswalk,pk-sam/crosswalk,XiaosongWei/crosswalk,amaniak/crosswalk,minggangw/crosswalk,hgl888/crosswalk-efl,crosswalk-project/crosswalk,zliang7/crosswalk,lincsoon/crosswalk,marcuspridham/crosswalk,dreamsxin/crosswalk,xzhan96/crosswalk,xzhan96/crosswalk,Pluto-tv/crosswalk,bestwpw/crosswalk,pk-sam/crosswalk,alex-zhang/crosswalk,RafuCater/crosswalk,lincsoon/crosswalk,stonegithubs/crosswalk,xzhan96/crosswalk,amaniak/crosswalk,jondong/crosswalk,zeropool/crosswalk,ZhengXinCN/crosswalk,darktears/crosswalk,chuan9/crosswalk,hgl888/crosswalk,crosswalk-project/crosswalk,crosswalk-project/crosswalk-efl,zliang7/crosswalk,crosswalk-project/crosswalk-efl,baleboy/crosswalk,DonnaWuDongxia/crosswalk,chuan9/crosswalk,alex-zhang/crosswalk,chuan9/crosswalk,ZhengXinCN/crosswalk,darktears/crosswalk,alex-zhang/crosswalk,zeropool/crosswalk,heke123/crosswalk,jondwillis/crosswalk,tomatell/crosswalk,axinging/crosswalk,XiaosongWei/crosswalk,mrunalk/crosswalk,zeropool/crosswalk,chuan9/crosswalk,crosswalk-project/crosswalk-efl,axinging/crosswalk,marcuspridham/crosswalk,marcuspridham/crosswalk,lincsoon/crosswalk,jondong/crosswalk,bestwpw/crosswalk,ZhengXinCN/crosswalk,alex-zhang/crosswalk,leonhsl/crosswalk,ZhengXinCN/crosswalk,weiyirong/crosswalk-1,tedshroyer/crosswalk,hgl888/crosswalk,pk-sam/crosswalk,DonnaWuDongxia/crosswalk,crosswalk-project/crosswalk,jondong/crosswalk,stonegithubs/crosswalk,baleboy/crosswalk,Bysmyyr/crosswalk,DonnaWuDongxia/crosswalk,mrunalk/crosswalk,hgl888/crosswalk,zliang7/crosswalk,axinging/crosswalk,lincsoon/crosswalk,Pluto-tv/crosswalk,marcuspridham/crosswalk,Bysmyyr/crosswalk,Bysmyyr/crosswalk,hgl888/crosswalk,minggangw/crosswalk,baleboy/crosswalk,heke123/crosswalk,jondong/crosswalk,stonegithubs/crosswalk,jpike88/crosswalk,weiyirong/crosswalk-1,weiyirong/crosswalk-1,crosswalk-project/crosswalk,siovene/crosswalk,XiaosongWei/crosswalk,Bysmyyr/crosswalk,leonhsl/crosswalk,mrunalk/crosswalk,tomatell/crosswalk,leonhsl/crosswalk,DonnaWuDongxia/crosswalk,hgl888/crosswalk-efl,bestwpw/crosswalk,axinging/crosswalk,siovene/crosswalk,amaniak/crosswalk,crosswalk-project/crosswalk-efl,pk-sam/crosswalk,siovene/crosswalk,zeropool/crosswalk,DonnaWuDongxia/crosswalk,marcuspridham/crosswalk,axinging/crosswalk,bestwpw/crosswalk,darktears/crosswalk,leonhsl/crosswalk,Pluto-tv/crosswalk,jpike88/crosswalk,amaniak/crosswalk,bestwpw/crosswalk,hgl888/crosswalk-efl,zliang7/crosswalk,axinging/crosswalk,ZhengXinCN/crosswalk,siovene/crosswalk,Bysmyyr/crosswalk,zliang7/crosswalk,bestwpw/crosswalk,jpike88/crosswalk,rakuco/crosswalk,tedshroyer/crosswalk,crosswalk-project/crosswalk,zliang7/crosswalk,lincsoon/crosswalk,leonhsl/crosswalk,Bysmyyr/crosswalk,hgl888/crosswalk-efl,minggangw/crosswalk,jondwillis/crosswalk,jondong/crosswalk,RafuCater/crosswalk,amaniak/crosswalk,PeterWangIntel/crosswalk,zeropool/crosswalk,heke123/crosswalk,dreamsxin/crosswalk,dreamsxin/crosswalk,zeropool/crosswalk,XiaosongWei/crosswalk,rakuco/crosswalk,weiyirong/crosswalk-1,marcuspridham/crosswalk,crosswalk-project/crosswalk-efl,darktears/crosswalk,tomatell/crosswalk,crosswalk-project/crosswalk-efl,jondwillis/crosswalk,jondwillis/crosswalk,DonnaWuDongxia/crosswalk,heke123/crosswalk,RafuCater/crosswalk,lincsoon/crosswalk,leonhsl/crosswalk,crosswalk-project/crosswalk,XiaosongWei/crosswalk,mrunalk/crosswalk,tedshroyer/crosswalk,rakuco/crosswalk,hgl888/crosswalk,dreamsxin/crosswalk,jpike88/crosswalk,darktears/crosswalk,tedshroyer/crosswalk,hgl888/crosswalk,chuan9/crosswalk,jondong/crosswalk,PeterWangIntel/crosswalk,RafuCater/crosswalk,DonnaWuDongxia/crosswalk,alex-zhang/crosswalk,zliang7/crosswalk,zliang7/crosswalk,marcuspridham/crosswalk,rakuco/crosswalk,tomatell/crosswalk,XiaosongWei/crosswalk,crosswalk-project/crosswalk-efl,jondwillis/crosswalk,minggangw/crosswalk,Bysmyyr/crosswalk,rakuco/crosswalk,tomatell/crosswalk,mrunalk/crosswalk,crosswalk-project/crosswalk,PeterWangIntel/crosswalk,dreamsxin/crosswalk,weiyirong/crosswalk-1,minggangw/crosswalk,Pluto-tv/crosswalk,rakuco/crosswalk,xzhan96/crosswalk,jondwillis/crosswalk,Pluto-tv/crosswalk,weiyirong/crosswalk-1,RafuCater/crosswalk,alex-zhang/crosswalk,Bysmyyr/crosswalk,crosswalk-project/crosswalk,jondong/crosswalk,ZhengXinCN/crosswalk,darktears/crosswalk,pk-sam/crosswalk,baleboy/crosswalk,hgl888/crosswalk,dreamsxin/crosswalk,hgl888/crosswalk,hgl888/crosswalk-efl,weiyirong/crosswalk-1,baleboy/crosswalk,rakuco/crosswalk,tomatell/crosswalk,chuan9/crosswalk,lincsoon/crosswalk,xzhan96/crosswalk,dreamsxin/crosswalk