Fix CM related sizing issues for completer and tooltip.

IPython/frontend/html/notebook/static/js/completer.js

@@ -198,8 +198,8 b' var IPython = (function (IPython) {'
 
         // TODO: I propose to remove enough horizontal pixel
         // to align the text later
-        this.complete.css('left', pos.x + 'px');
-        this.complete.css('top', pos.yBot + 'px');
+        this.complete.css('left', pos.left + 'px');
+        this.complete.css('top', pos.bottom + 'px');
         this.complete.append(this.sel);
 
         $('body').append(this.complete);

IPython/frontend/html/notebook/static/js/tooltip.js

@@ -292,27 +292,21 b' var IPython = (function (IPython) {'
         // whatever anchor/head order but arrow at mid x selection
         var anchor = this.code_mirror.cursorCoords(false);
         var head  = this.code_mirror.cursorCoords(true);
-        var pos = {};
-        pos.y = head.top
-        pos.yBot = head.bottom
-        pos.x = (head.left+anchor.left)/2;
-
-        var xinit = pos.x;
+        var xinit = (head.left+anchor.left)/2;
         var xinter = o.left + (xinit - o.left) / w * (w - 450);
         var posarrowleft = xinit - xinter;
 
-
         if (this._hidden == false) {
             this.tooltip.animate({
                 'left': xinter - 30 + 'px',
-                'top': (pos.yBot + 10) + 'px'
+                'top': (head.bottom + 10) + 'px'
             });
         } else {
             this.tooltip.css({
                 'left': xinter - 30 + 'px'
             });
             this.tooltip.css({
-                'top': (pos.yBot + 10) + 'px'
+                'top': (head.bottom + 10) + 'px'
             });
         }
         this.arrow.animate({