Add first letter test when first letter is inside a floated block.

Source/core/rendering/RenderBlock.cpp

Index: Source/core/rendering/RenderBlock.cpp
diff --git a/Source/core/rendering/RenderBlock.cpp b/Source/core/rendering/RenderBlock.cpp
index 6737a7e3bdeb5f149668004ba2e4e8a1dd08c6ca..3335a66554df916bec481d93a53719e4c2b9c434 100644
--- a/Source/core/rendering/RenderBlock.cpp
+++ b/Source/core/rendering/RenderBlock.cpp
@@ -3586,8 +3586,6 @@ void RenderBlock::computePreferredLogicalWidths()
 {
     ASSERT(preferredLogicalWidthsDirty());
 
-    updateFirstLetter();

[esprehn, 2014/07/14 22:55:01]

If you don't call updateFirstLetter() when computing the preferred widths then
the width of a floated block (or one with intrinsic widths like min-content)
will be wrong. It's sad we don't have test coverage.

-
     m_minPreferredLogicalWidth = 0;
     m_maxPreferredLogicalWidth = 0;