[Chromium] REGRESSION (r95725): Resizing a window doesn't resize the contents

[Chromium] REGRESSION (r95725): Resizing a window doesn't resize the contents
https://bugs.webkit.org/show_bug.cgi?id=68730

Reviewed by James Robinson.

Source/WebCore:

Adds a missing contentsResized() call in ScrollView::setFrameRect.

Test: fast/dom/Window/window-resize-contents.html

* platform/ScrollView.cpp:
(WebCore::ScrollView::setFrameRect):

LayoutTests:

Test for resizing of the window triggering resizing of contents.

* fast/dom/Window/window-resize-contents-expected.txt: Added.
* fast/dom/Window/window-resize-contents.html: Added.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@95897 268f45cc-cd09-0410-ab3c-d52691b4dbfc