Add DISABLE_CFI_PERF attribute on the methods with CFI checks disabled.

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

Index: third_party/WebKit/Source/core/layout/LayoutBlockFlowLine.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutBlockFlowLine.cpp b/third_party/WebKit/Source/core/layout/LayoutBlockFlowLine.cpp
index 495ccd553791c65849e9f5f39fe29226201d4105..584ed5dfc66ee44174d3dd61b97ce32c38fc17c5 100644
--- a/third_party/WebKit/Source/core/layout/LayoutBlockFlowLine.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutBlockFlowLine.cpp
@@ -1284,6 +1284,7 @@ static inline void adjustMarginForInlineReplaced(LayoutObject* child,
 
 // FIXME: This function should be broken into something less monolithic.
 // FIXME: The main loop here is very similar to LineBreaker::nextSegmentBreak. They can probably reuse code.
+DISABLE_CFI_PERF
 void LayoutBlockFlow::computeInlinePreferredLogicalWidths(LayoutUnit& minLogicalWidth, LayoutUnit& maxLogicalWidth)
 {
     LayoutUnit inlineMax;
@@ -1585,6 +1586,7 @@ static inline bool shouldTruncateOverflowingText(const LayoutBlockFlow* block)
     return objectToCheck->hasOverflowClip() && objectToCheck->style()->getTextOverflow();
 }
 
+DISABLE_CFI_PERF
 void LayoutBlockFlow::layoutInlineChildren(bool relayoutChildren, LayoutUnit afterEdge)
 {
     // Figure out if we should clear out our line boxes.