Merge 157345 "Fixing the bounds check in cancelCompositionIfSele..."

Source/core/editing/InputMethodController.cpp

Index: Source/core/editing/InputMethodController.cpp
===================================================================
--- Source/core/editing/InputMethodController.cpp	(revision 157550)
+++ Source/core/editing/InputMethodController.cpp	(working copy)
@@ -173,8 +173,8 @@
     Position end = m_frame->selection()->end();
     if (start.containerNode() == m_compositionNode
         && end.containerNode() == m_compositionNode
-        && static_cast<unsigned>(start.computeOffsetInContainerNode()) > m_compositionStart
-        && static_cast<unsigned>(end.computeOffsetInContainerNode()) < m_compositionEnd)
+        && static_cast<unsigned>(start.computeOffsetInContainerNode()) >= m_compositionStart
+        && static_cast<unsigned>(end.computeOffsetInContainerNode()) <= m_compositionEnd)
         return;
 
     cancelComposition();