Assorted fixes for NaCl. Hat tip to Sylvain Becker

src/video/nacl/SDL_naclvideo.c

@@ -139,6 +139,7 @@ int NACL_VideoInit(_THIS) {
     SDL_VideoData *driverdata = (SDL_VideoData *) _this->driverdata;
     SDL_DisplayMode mode;
 
+    SDL_zero(mode);
     mode.format = driverdata->format;
     mode.w = driverdata->w;
     mode.h = driverdata->h;
@@ -147,8 +148,7 @@ int NACL_VideoInit(_THIS) {
     if (SDL_AddBasicVideoDisplay(&mode) < 0) {
         return -1;
     }
-    
-    SDL_zero(mode);
+
     SDL_AddDisplayMode(&_this->displays[0], &mode);
     
     PSInterfaceInit();

src/video/nacl/SDL_naclwindow.c

@@ -51,6 +51,9 @@ NACL_CreateWindow(_THIS, SDL_Window * window)
     window->flags |= SDL_WINDOW_INPUT_FOCUS;    /* always has input focus */    
     window->flags |= SDL_WINDOW_OPENGL;
   
+    SDL_SetMouseFocus(window);
+    SDL_SetKeyboardFocus(window);
+    
     return 0;
 }