Remove selected text when committing empty text

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

Index: third_party/WebKit/Source/core/editing/InputMethodControllerTest.cpp
diff --git a/third_party/WebKit/Source/core/editing/InputMethodControllerTest.cpp b/third_party/WebKit/Source/core/editing/InputMethodControllerTest.cpp
index 3857308030c399a5366c91b2d15f82efec4b6eef..4ad2ef16152303d34ef87022cc372d624e438ade 100644
--- a/third_party/WebKit/Source/core/editing/InputMethodControllerTest.cpp
+++ b/third_party/WebKit/Source/core/editing/InputMethodControllerTest.cpp
@@ -1272,7 +1272,7 @@ TEST_F(InputMethodControllerTest, CompositionInputEventForInsertEmptyText) {
   GetDocument().setTitle(g_empty_string);
   GetDocument().UpdateStyleAndLayout();
   Controller().CommitText("", underlines, 0);
-  EXPECT_STREQ("", GetDocument().title().Utf8().data());
+  EXPECT_STREQ("beforeinput.data:;", GetDocument().title().Utf8().data());
 
   GetDocument().setTitle(g_empty_string);
   Controller().SetComposition("n", underlines, 1, 1);
@@ -1507,6 +1507,22 @@ TEST_F(InputMethodControllerTest, WhitespaceFixup) {
   EXPECT_STREQ(" text ", div->innerHTML().Utf8().data());
 }
 
+TEST_F(InputMethodControllerTest, CommitEmptyTextDeletesSelection) {
+  HTMLInputElement* input =
+      toHTMLInputElement(InsertHTMLElement("<input id='sample'>", "sample"));
+
+  input->setValue("Abc Def Ghi");
+  GetDocument().UpdateStyleAndLayout();
+  Vector<CompositionUnderline> empty_underlines;
+  Controller().SetEditableSelectionOffsets(PlainTextRange(4, 8));
+  Controller().CommitText(String(""), empty_underlines, 0);
+  EXPECT_STREQ("Abc Ghi", input->value().Utf8().data());
+
+  Controller().SetEditableSelectionOffsets(PlainTextRange(4, 7));
+  Controller().CommitText(String("1"), empty_underlines, 0);
+  EXPECT_STREQ("Abc 1", input->value().Utf8().data());
+}
+
 static String GetMarkedText(
     DocumentMarkerController& document_marker_controller,
     Node* node,