[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..027ccce6d945bc6019cd3ee9539561c22822a0bd 100644
--- a/third_party/WebKit/Source/core/editing/CompositionUnderline.cpp
+++ b/third_party/WebKit/Source/core/editing/CompositionUnderline.cpp
@@ -11,7 +11,24 @@ 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,
+                           std::vector<std::string>()) {}
+
+CompositionUnderline::CompositionUnderline(
+    unsigned startOffset,
+    unsigned endOffset,
+    const Color& color,
+    bool thick,
+    const Color& backgroundColor,
+    const std::vector<std::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).