[Editing] Let InputMethodController::hasComposition check Range::isConnected().

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

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/editing/InputMethodController.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/Element.h"
 #include "core/dom/Range.h"
 #include "core/editing/Editor.h"
@@ skipping 1044 matching lines @@
   EXPECT_EQ(1u, controller().getSelectionOffsets().start());
   EXPECT_EQ(1u, controller().getSelectionOffsets().end());
 
   // Confirm the ongoing composition. Note that it moves the caret to the end of
   // text [5,5] before firing 'compositonend' event.
   controller().finishComposingText(InputMethodController::DoNotKeepSelection);
   document().updateStyleAndLayout();
   EXPECT_TRUE(controller().getSelectionOffsets().isNull());
 }
 
+TEST_F(InputMethodControllerTest, FinishCompositionRemovedRange) {
+  Element* inputA =
+      insertHTMLElement("<input id='a' /><br><input type='tel' id='b' />", "a");
+
+  EXPECT_EQ(WebTextInputTypeText, controller().textInputType());
+
+  // The test requires non-empty composition.
+  controller().setComposition("hello", Vector<CompositionUnderline>(), 5, 5);
+  EXPECT_EQ(WebTextInputTypeText, controller().textInputType());
+
+  // Remove element 'a'.
+  inputA->setOuterHTML("", ASSERT_NO_EXCEPTION);
+  EXPECT_EQ(WebTextInputTypeNone, controller().textInputType());
+
+  document().getElementById("b")->focus();
+  EXPECT_EQ(WebTextInputTypeTelephone, controller().textInputType());
+
+  controller().finishComposingText(InputMethodController::KeepSelection);
+  EXPECT_EQ(WebTextInputTypeTelephone, controller().textInputType());
+}
+
 }  // namespace blink