[WIP] Add support for Android SuggestionSpans when editing text

third_party/WebKit/Source/core/dom/Document.cpp

Index: third_party/WebKit/Source/core/dom/Document.cpp
diff --git a/third_party/WebKit/Source/core/dom/Document.cpp b/third_party/WebKit/Source/core/dom/Document.cpp
index 230d3c9b6189a61b6fb0ae4ca0392faef892eaef..18c80facf3ef71cd43ba3ecb81cfda9b9856f7e2 100644
--- a/third_party/WebKit/Source/core/dom/Document.cpp
+++ b/third_party/WebKit/Source/core/dom/Document.cpp
@@ -4256,7 +4256,7 @@ void Document::didInsertText(Node* text, unsigned offset, unsigned length) {
   for (Range* range : m_ranges)
     range->didInsertText(text, offset, length);
 
-  m_markers->shiftMarkers(text, offset, length);
+  m_markers->shiftMarkers(text, offset, 0, length);
 }
 
 void Document::didRemoveText(Node* text, unsigned offset, unsigned length) {
@@ -4264,7 +4264,7 @@ void Document::didRemoveText(Node* text, unsigned offset, unsigned length) {
     range->didRemoveText(text, offset, length);
 
   m_markers->removeMarkers(text, offset, length);
-  m_markers->shiftMarkers(text, offset + length, 0 - length);
+  m_markers->shiftMarkers(text, offset, length, 0);
 }
 
 void Document::didMergeTextNodes(const Text& mergedNode,