Avoid reporting space as NBSP in TextInputState.

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 1151 matching lines @@
   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());
 }
 
+TEST_F(InputMethodControllerTest, ReflectsSpaceWithoutNbspMangling) {
+  insertHTMLElement("<div id='sample' contenteditable></div>", "sample");
+
+  Vector<CompositionUnderline> underlines;
+  controller().commitText(String("  "), underlines, 0);
+
+  // In a contenteditable, multiple spaces or a space at the edge needs to be

[aelias_OOO_until_Jul13, 2017/01/25 04:34:09]

Done.

+  // nbsp to affect layout properly, but it confuses some IMEs (particularly
+  // Vietnamese, see crbug.com/663880) to have their spaces reflected back to
+  // them as nbsp.
+  EXPECT_EQ(' ', controller().textInputInfo().value.ascii()[0]);
+  EXPECT_EQ(' ', controller().textInputInfo().value.ascii()[1]);
+}
+
 TEST_F(InputMethodControllerTest, SetCompositionPlainTextWithUnderline) {
   insertHTMLElement("<div id='sample' contenteditable></div>", "sample");
 
   Vector<CompositionUnderline> underlines;
   underlines.push_back(CompositionUnderline(0, 1, Color(255, 0, 0), false, 0));
 
   controller().setComposition(" ", underlines, 1, 1);
 
   ASSERT_EQ(1u, document().markers().markers().size());
 
@@ skipping 31 matching lines @@
 
   controller().commitText(String("string"), underlines, 0);
 
   ASSERT_EQ(1u, document().markers().markers().size());
 
   EXPECT_EQ(9u, document().markers().markers()[0]->startOffset());
   EXPECT_EQ(15u, document().markers().markers()[0]->endOffset());
 }
 
 }  // namespace blink