[Local NTP] Position doodles by top edge

This accommodates doodles of differing heights, where some (like today's
Germany doodle) should extend all the way to the fakebox, but others
shouldn't.

The positions have been obtained by the scientific method of: 1) making
sure the default Google logo doesn't move and 2) adjusting doodles until
they look like today's homepage doodle.

Bug: 761942
Cq-Include-Trybots: master.tryserver.chromium.linux:closure_compilation
Change-Id: I588c536f60447b72a256e07cbb758e9bd4200624
Reviewed-on: https://chromium-review.googlesource.com/675404Reviewed-by: Marc Treib <treib@chromium.org>
Commit-Queue: Chris Pickel <sfiera@chromium.org>
Cr-Commit-Position: refs/heads/master@{#503396}

chrome/browser/resources/local_ntp/local_ntp.css

@@ -72,7 +72,6 @@ body.hide-fakebox-logo #fakebox {
 
 #logo-default,
 #logo-doodle {
-  bottom: 0;
   position: absolute;
   transition: opacity 130ms;
 }
@@ -82,6 +81,7 @@ body.hide-fakebox-logo #fakebox {
   background-repeat: no-repeat;
   height: 92px;
   left: calc(50% - 272px/2);
+  top: 157px;
   width: 272px;
 }
 
@@ -94,6 +94,7 @@ body.hide-fakebox-logo #fakebox {
   left: -100px;
   opacity: 0;
   right: -100px;
+  top: 44px;
 }
 
 #logo-doodle-link {