[WIP] Add support for Android SuggestionSpans when editing text

third_party/WebKit/Source/core/editing/CompositionUnderline.cpp

Index: third_party/WebKit/Source/core/editing/CompositionUnderline.cpp
diff --git a/third_party/WebKit/Source/core/editing/CompositionUnderline.cpp b/third_party/WebKit/Source/core/editing/CompositionUnderline.cpp
index e404879b86ccb7b461d896f3eaeda749d8783b57..8dc5117ae3de165a1c6f31ea98fb519d7436c8ee 100644
--- a/third_party/WebKit/Source/core/editing/CompositionUnderline.cpp
+++ b/third_party/WebKit/Source/core/editing/CompositionUnderline.cpp
@@ -11,7 +11,23 @@ CompositionUnderline::CompositionUnderline(unsigned startOffset,
                                            const Color& color,
                                            bool thick,
                                            const Color& backgroundColor)
-    : m_color(color), m_thick(thick), m_backgroundColor(backgroundColor) {
+    : CompositionUnderline(startOffset,
+                           endOffset,
+                           color,
+                           thick,
+                           backgroundColor,
+                           Vector<String>()) {}
+
+CompositionUnderline::CompositionUnderline(unsigned startOffset,
+                                           unsigned endOffset,
+                                           const Color& color,
+                                           bool thick,
+                                           const Color& backgroundColor,
+                                           const Vector<String>& suggestions)
+    : m_color(color),
+      m_thick(thick),
+      m_backgroundColor(backgroundColor),
+      m_suggestions(suggestions) {
   // Sanitize offsets by ensuring a valid range corresponding to the last
   // possible position.
   // TODO(wkorman): Consider replacing with DCHECK_LT(startOffset, endOffset).