Source/WebCore: Move ImageOrientation transform back in CG space (lower-left origin), adapt the skia code to work with that, turn on feature for chromium
https://bugs.webkit.org/show_bug.cgi?id=100401

Reviewed by Eric Seidel.

This is an alternative fix for the regression caused by r132384 / bug
100179. The bug exists because different pieces of code didn't agree
which space the transformation returned by ImageOrientation was in.

r132384 moved it from CG coordinates to skia coordinates, but didn't
do it completetely. This CL reverts this part of r132384 so that the
transformation is in CG coordinates again, and adapts the skia code to
work in that space.

Alternatively, https://bugs.webkit.org/show_bug.cgi?id=100319 woudl
make the cg code work with the transform in skia coordinates.

Covered by fast/images/exif-orientation.html

* platform/chromium/DragImageChromiumSkia.cpp:
(WebCore::createDragImageFromImage):
* platform/graphics/ImageOrientation.cpp:
(WebCore::ImageOrientation::transformFromDefault):
* platform/graphics/ImageOrientation.h:
(WebCore):
(WebCore::ImageOrientation::usesWidthAsHeight):
(WebCore::ImageOrientation::fromEXIFValue):
(ImageOrientation):
* platform/graphics/cg/GraphicsContextCG.cpp:
(WebCore::GraphicsContext::drawNativeImage):
* platform/graphics/skia/ImageSkia.cpp:
(WebCore::BitmapImage::draw):
* platform/mac/DragImageMac.mm:
(WebCore::createDragImageFromImage):
* rendering/RenderObject.cpp:
(WebCore::RenderObject::shouldRespectImageOrientation):

LayoutTests: Move ImageOrientation transform back in CG space (lower-left origin), adapt the skia code to work with that, turn on feature for chromium
https://bugs.webkit.org/show_bug.cgi?id=100319

Reviewed by Eric Seidel.

* platform/chromium/TestExpectations:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@132525 268f45cc-cd09-0410-ab3c-d52691b4dbfc