Fixing the bounds check in cancelCompositionIfSelectionIsInvalid.

Source/core/editing/InputMethodController.cpp

Index: Source/core/editing/InputMethodController.cpp
diff --git a/Source/core/editing/InputMethodController.cpp b/Source/core/editing/InputMethodController.cpp
index 7b1fa80b28759bae3ca152129728f25dd6e89f73..ed5347958eb65fbccc3e6876f30e1c5973ffb8e9 100644
--- a/Source/core/editing/InputMethodController.cpp
+++ b/Source/core/editing/InputMethodController.cpp
@@ -172,8 +172,8 @@ void InputMethodController::cancelCompositionIfSelectionIsInvalid()
     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();