[BlackBerry] canvas is not rendering correctly for www.html5-benchmar…

…k.com

https://bugs.webkit.org/show_bug.cgi?id=113716

Patch by Konrad Piascik <kpiascik@blackberry.com> on 2013-04-01
Reviewed by Rob Buis.

PR 317205
Internally reivewed by: Mike Lattanzio, Jacky Jiang

This is a site issue where they detect physical pixels by multiplying
availWidth * devicePixelRatio.  This gives us an invalid result since
we don't round the CSS pixels that are reported to availWidth and availHeight.

* platform/blackberry/PlatformScreenBlackBerry.cpp:
(WebCore::toUserSpace):

Canonical link: https://commits.webkit.org/132067@main
git-svn-id: https://svn.webkit.org/repository/webkit/trunk@147385 268f45cc-cd09-0410-ab3c-d52691b4dbfc

Source/WebCore/ChangeLog

@@ -1,3 +1,20 @@
+2013-04-01  Konrad Piascik  <kpiascik@blackberry.com>
+
+        [BlackBerry] canvas is not rendering correctly for www.html5-benchmark.com
+        https://bugs.webkit.org/show_bug.cgi?id=113716
+
+        Reviewed by Rob Buis.
+
+        PR 317205
+        Internally reivewed by: Mike Lattanzio, Jacky Jiang
+
+        This is a site issue where they detect physical pixels by multiplying
+        availWidth * devicePixelRatio.  This gives us an invalid result since
+        we don't round the CSS pixels that are reported to availWidth and availHeight.
+
+        * platform/blackberry/PlatformScreenBlackBerry.cpp:
+        (WebCore::toUserSpace):
+
 2013-04-01  Hans Muller  <hmuller@adobe.com>
 
         [CSS Exclusions] shape-outside on floats fails to respect shape-margin's vertical extent

Source/WebCore/platform/blackberry/PlatformScreenBlackBerry.cpp

@@ -52,8 +52,10 @@ static FloatRect toUserSpace(FloatRect rect, Widget* widget)
 {
     if (widget->isFrameView()) {
         Page* page = toFrameView(widget)->frame()->page();
-        if (page && !page->settings()->applyDeviceScaleFactorInCompositor())
+        if (page && !page->settings()->applyDeviceScaleFactorInCompositor()) {
             rect.scale(1 / page->deviceScaleFactor());
+            rect.setSize(expandedIntSize(rect.size()));
+        }
     }
     return rect;
 }