Fix not autosizing ruby elements issue.

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

Index: third_party/WebKit/Source/core/layout/TextAutosizer.cpp
diff --git a/third_party/WebKit/Source/core/layout/TextAutosizer.cpp b/third_party/WebKit/Source/core/layout/TextAutosizer.cpp
index af61f4ee062355a2a97ee95ee8ea791af24cea91..51acaf84d3df3fab59941b969ea97e83af84652c 100644
--- a/third_party/WebKit/Source/core/layout/TextAutosizer.cpp
+++ b/third_party/WebKit/Source/core/layout/TextAutosizer.cpp
@@ -30,6 +30,7 @@
 
 #include "core/layout/TextAutosizer.h"
 
+#include <memory>
 #include "core/dom/Document.h"
 #include "core/frame/FrameHost.h"
 #include "core/frame/FrameView.h"
@@ -41,6 +42,7 @@
 #include "core/layout/LayoutInline.h"
 #include "core/layout/LayoutListItem.h"
 #include "core/layout/LayoutListMarker.h"
+#include "core/layout/LayoutRubyRun.h"
 #include "core/layout/LayoutTable.h"
 #include "core/layout/LayoutTableCell.h"
 #include "core/layout/LayoutView.h"
@@ -48,7 +50,6 @@
 #include "core/layout/api/LayoutViewItem.h"
 #include "core/page/Page.h"
 #include "wtf/PtrUtil.h"
-#include <memory>
 
 #ifdef AUTOSIZING_DOM_DEBUG_INFO
 #include "core/dom/ExecutionContextTask.h"
@@ -400,6 +401,10 @@ void TextAutosizer::beginLayout(LayoutBlock* block,
   if (prepareForLayout(block) == StopLayout)
     return;
 
+  // Skip <ruby> inner blocks.
+  if (block->isRubyRun() || block->isRubyBase() || block->isRubyText())
+    return;
+
   ASSERT(!m_clusterStack.isEmpty() || block->isLayoutView());
 
   if (Cluster* cluster = maybeCreateCluster(block))
@@ -470,8 +475,15 @@ float TextAutosizer::inflate(LayoutObject* parent,
   bool hasTextChild = false;
 
   LayoutObject* child = nullptr;
-  if (parent->isLayoutBlock() &&
-      (parent->childrenInline() || behavior == DescendToInnerBlocks))
+  if (parent->isRuby()) {

[cathiechentx, 2017/02/07 08:35:54]

Cause ruby could be block or inline, deal with ruby's inner blocks in inflate(),
to make sure both block and inline ruby elements be handled. 

+    // Skip layoutRubyRun which is inline-block.
+    // Inflate ruby's inner blocks.
+    if (parent->slowFirstChild() && parent->slowFirstChild()->isRubyRun()) {
+      child = toLayoutRubyRun(parent->slowFirstChild())->firstChild();
+      behavior = DescendToInnerBlocks;
+    }
+  } else if (parent->isLayoutBlock() &&
+             (parent->childrenInline() || behavior == DescendToInnerBlocks))
     child = toLayoutBlock(parent)->firstChild();
   else if (parent->isLayoutInline())
     child = toLayoutInline(parent)->firstChild();