[HTML5] Fix WM notifications not being called.
[HTML5] Fix WM notifications not being called.

Regression from the library refactoring, binding and not calling is
pretty useless 'o_o.

BastiaanOlij/godot,akien-mga/godot,Shockblast/godot,Shockblast/godot,ZuBsPaCe/godot,akien-mga/godot,MarianoGnu/godot,Valentactive/godot,sanikoyes/godot,godotengine/godot,josempans/godot,guilhermefelipecgs/godot,Zylann/godot,ZuBsPaCe/godot,vkbsb/godot,ZuBsPaCe/godot,josempans/godot,akien-mga/godot,ZuBsPaCe/godot,DmitriySalnikov/godot,honix/godot,vnen/godot,godotengine/godot,BastiaanOlij/godot,guilhermefelipecgs/godot,guilhermefelipecgs/godot,vkbsb/godot,pkowal1982/godot,Faless/godot,sanikoyes/godot,firefly2442/godot,Faless/godot,josempans/godot,DmitriySalnikov/godot,pkowal1982/godot,Valentactive/godot,MarianoGnu/godot,josempans/godot,MarianoGnu/godot,pkowal1982/godot,Valentactive/godot,Shockblast/godot,josempans/godot,BastiaanOlij/godot,godotengine/godot,MarianoGnu/godot,vkbsb/godot,BastiaanOlij/godot,firefly2442/godot,Zylann/godot,honix/godot,MarianoGnu/godot,pkowal1982/godot,guilhermefelipecgs/godot,vkbsb/godot,Faless/godot,DmitriySalnikov/godot,Zylann/godot,akien-mga/godot,ZuBsPaCe/godot,sanikoyes/godot,Valentactive/godot,BastiaanOlij/godot,Shockblast/godot,Faless/godot,guilhermefelipecgs/godot,Faless/godot,Valentactive/godot,josempans/godot,DmitriySalnikov/godot,firefly2442/godot,sanikoyes/godot,godotengine/godot,vkbsb/godot,firefly2442/godot,josempans/godot,sanikoyes/godot,vkbsb/godot,akien-mga/godot,BastiaanOlij/godot,pkowal1982/godot,vnen/godot,Zylann/godot,vkbsb/godot,sanikoyes/godot,Valentactive/godot,vnen/godot,MarianoGnu/godot,Shockblast/godot,MarianoGnu/godot,godotengine/godot,vnen/godot,firefly2442/godot,honix/godot,honix/godot,sanikoyes/godot,guilhermefelipecgs/godot,akien-mga/godot,honix/godot,josempans/godot,Valentactive/godot,Zylann/godot,firefly2442/godot,vnen/godot,vnen/godot,godotengine/godot,ZuBsPaCe/godot,DmitriySalnikov/godot,DmitriySalnikov/godot,BastiaanOlij/godot,Zylann/godot,akien-mga/godot,pkowal1982/godot,honix/godot,firefly2442/godot,vkbsb/godot,Shockblast/godot,Zylann/godot,ZuBsPaCe/godot,guilhermefelipecgs/godot,DmitriySalnikov/godot,vnen/godot,firefly2442/godot,Zylann/godot,Valentactive/godot,godotengine/godot,Faless/godot,sanikoyes/godot,godotengine/godot,ZuBsPaCe/godot,Shockblast/godot,vnen/godot,pkowal1982/godot,akien-mga/godot,MarianoGnu/godot,Faless/godot,BastiaanOlij/godot,Shockblast/godot,Faless/godot,guilhermefelipecgs/godot,pkowal1982/godot