https://bugs.webkit.org/show_bug.cgi?id=6047

Source/WebCore:

Text-decorations are applied during paint phase. The style was not being properly selected in case of
first line box. The patch fixes this.

Patch by Pravin D <pravind.2k4@gmail.com> on 2012-05-07
Reviewed by Eric Seidel.

Tests: fast/css/first-line-text-decoration-inherited-from-parent.html
       fast/css/first-line-text-decoration.html

* rendering/InlineTextBox.cpp:
(WebCore::InlineTextBox::paintDecoration):
Inform the decoration color retriever if this box is part of the first line box or not.

* rendering/RenderObject.cpp:
(WebCore::decorationColor):
Changed the argument from RenderObject* to RenderStyle*. As this function is just a helper to getTextDecorationColors
as used RenderObject solely to retrieve the corresponding RenderStyle, which(RenderStyle*) was already available with the latter function.

(WebCore::RenderObject::getTextDecorationColors):
Take a new variable to check if first line style or the regular style has to be used.
Sends RenderStyle* as an argument to decorationColor().

* rendering/RenderObject.h:
(RenderObject):

LayoutTests:

Patch by Pravin D <pravind.2k4@gmail.com> on 2012-05-07
Reviewed by Eric Seidel.

* fast/css/first-line-text-decoration.html: Added.
* platform/qt-linux/fast/css/first-line-text-decoration-expected.png: Added.
* platform/qt-linux/fast/css/first-line-text-decoration-expected.txt: Added.
 This test checks if text-decoration present in the tags first-line style is applied properly.

* fast/css/first-line-text-decoration-inherited-from-parent.html: Added.
* platform/qt-linux/fast/css/first-line-text-decoration-inherited-from-parent-expected.png: Added.
* platform/qt-linux/fast/css/first-line-text-decoration-inherited-from-parent-expected.txt: Added.
 This test checks if the text-decoration and text color is chosen properly in the case where
 the first-line style is inherited from a parent and contains such text-decorations.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@116373 268f45cc-cd09-0410-ab3c-d52691b4dbfc