css rendering bug : fixed-position-element and 'left'

Source/core/rendering/RenderBox.cpp

Index: Source/core/rendering/RenderBox.cpp
diff --git a/Source/core/rendering/RenderBox.cpp b/Source/core/rendering/RenderBox.cpp
index f8701312bfd61f38a443479ad7901352007b805a..a7c43665778a45f7fbb1e35fa5dbf0fa0c34c493 100644
--- a/Source/core/rendering/RenderBox.cpp
+++ b/Source/core/rendering/RenderBox.cpp
@@ -3084,6 +3084,8 @@ static void computeInlineStaticDistance(Length& logicalLeft, Length& logicalRigh
         for (RenderObject* curr = child->parent(); curr && curr != containerBlock; curr = curr->container()) {
             if (curr->isBox()) {
                 staticPosition += toRenderBox(curr)->logicalLeft();
+                if (toRenderBox(curr)->isRelPositioned())
+                    staticPosition += toRenderBox(curr)->relativePositionOffset().width();
                 if (region && curr->isRenderBlock()) {
                     const RenderBlock* cb = toRenderBlock(curr);
                     region = cb->clampToStartAndEndRegions(region);
@@ -3091,16 +3093,26 @@ static void computeInlineStaticDistance(Length& logicalLeft, Length& logicalRigh
                     if (boxInfo)
                         staticPosition += boxInfo->logicalLeft();
                 }
+            } else if (curr->isInline()) {
+                if (curr->isRelPositioned()) {
+                    if (!curr->style()->logicalLeft().isAuto())
+                        staticPosition += curr->style()->logicalLeft().value();
+                    else
+                        staticPosition -= curr->style()->logicalRight().value();
+                }
             }
         }
         logicalLeft.setValue(Fixed, staticPosition);
     } else {
         RenderBox* enclosingBox = child->parent()->enclosingBox();
         LayoutUnit staticPosition = child->layer()->staticInlinePosition() + containerLogicalWidth + containerBlock->borderLogicalLeft();
-        for (RenderObject* curr = enclosingBox; curr; curr = curr->container()) {
+        for (RenderObject* curr = child->parent(); curr; curr = curr->container()) {
             if (curr->isBox()) {
-                if (curr != containerBlock)
+                if (curr != containerBlock) {
                     staticPosition -= toRenderBox(curr)->logicalLeft();
+                    if (toRenderBox(curr)->isRelPositioned())
+                        staticPosition -= toRenderBox(curr)->relativePositionOffset().width();
+                }
                 if (curr == enclosingBox)
                     staticPosition -= enclosingBox->logicalWidth();
                 if (region && curr->isRenderBlock()) {
@@ -3114,6 +3126,13 @@ static void computeInlineStaticDistance(Length& logicalLeft, Length& logicalRigh
                             staticPosition += enclosingBox->logicalWidth() - boxInfo->logicalWidth();
                     }
                 }
+            } else if (curr->isInline()) {
+                if (curr->isRelPositioned()) {
+                    if (!curr->style()->logicalLeft().isAuto())
+                        staticPosition -= curr->style()->logicalLeft().value();
+                    else
+                        staticPosition += curr->style()->logicalRight().value();
+                }
             }
             if (curr == containerBlock)
                 break;