Do the obvious thing for first-line styles.

third_party/WebKit/Source/core/layout/LayoutObject.cpp

Index: third_party/WebKit/Source/core/layout/LayoutObject.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutObject.cpp b/third_party/WebKit/Source/core/layout/LayoutObject.cpp
index 354e11b3a7aa04a8e1fa8faea0f727396b1674c7..b32332c3a4394117cbcd18b9a296c47818be4235 100644
--- a/third_party/WebKit/Source/core/layout/LayoutObject.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutObject.cpp
@@ -3027,39 +3027,10 @@ static PassRefPtr<ComputedStyle> firstLineStyleForCachedUncachedType(
     StyleCacheState type,
     const LayoutObject* layoutObject,
     ComputedStyle* style) {
-  const LayoutObject* layoutObjectForFirstLineStyle = layoutObject;
-  if (layoutObject->isBeforeOrAfterContent())
-    layoutObjectForFirstLineStyle = layoutObject->parent();
-
-  if (layoutObjectForFirstLineStyle->behavesLikeBlockContainer()) {
-    if (const LayoutBlock* firstLineBlock =
-            toLayoutBlock(layoutObjectForFirstLineStyle)
-                ->enclosingFirstLineStyleBlock()) {
-      if (type == Cached)
-        return firstLineBlock->getCachedPseudoStyle(PseudoIdFirstLine, style);
-      return firstLineBlock->getUncachedPseudoStyle(
-          PseudoStyleRequest(PseudoIdFirstLine), style);
-    }
-  } else if (!layoutObjectForFirstLineStyle->isAnonymous() &&
-             layoutObjectForFirstLineStyle->isLayoutInline() &&
-             !layoutObjectForFirstLineStyle->node()
-                  ->isFirstLetterPseudoElement()) {
-    const ComputedStyle* parentStyle =
-        layoutObjectForFirstLineStyle->parent()->firstLineStyle();
-    if (parentStyle != layoutObjectForFirstLineStyle->parent()->style()) {
-      if (type == Cached) {
-        // A first-line style is in effect. Cache a first-line style for
-        // ourselves.
-        layoutObjectForFirstLineStyle->mutableStyleRef().setHasPseudoStyle(
-            PseudoIdFirstLineInherited);
-        return layoutObjectForFirstLineStyle->getCachedPseudoStyle(
-            PseudoIdFirstLineInherited, parentStyle);
-      }
-      return layoutObjectForFirstLineStyle->getUncachedPseudoStyle(
-          PseudoStyleRequest(PseudoIdFirstLineInherited), parentStyle);
-    }
-  }
-  return nullptr;
+  return type == Cached
+             ? layoutObject->getCachedPseudoStyle(PseudoIdFirstLine, style)
+             : layoutObject->getUncachedPseudoStyle(
+                   PseudoStyleRequest(PseudoIdFirstLine), style);
 }
 
 PassRefPtr<ComputedStyle> LayoutObject::uncachedFirstLineStyle() const {
@@ -3074,8 +3045,8 @@ PassRefPtr<ComputedStyle> LayoutObject::uncachedFirstLineStyle() const {
 ComputedStyle* LayoutObject::cachedFirstLineStyle() const {
   ASSERT(document().styleEngine().usesFirstLineRules());
 
-  if (RefPtr<ComputedStyle> style = firstLineStyleForCachedUncachedType(
-          Cached, isText() ? parent() : this, m_style.get()))
+  if (RefPtr<ComputedStyle> style =
+          firstLineStyleForCachedUncachedType(Cached, this, m_style.get()))
     return style.get();
 
   return m_style.get();