[Smart Text] Make SurroundingText work for input elements

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

Index: third_party/WebKit/Source/core/editing/SurroundingTextTest.cpp
diff --git a/third_party/WebKit/Source/core/editing/SurroundingTextTest.cpp b/third_party/WebKit/Source/core/editing/SurroundingTextTest.cpp
index acb6dfce1e28e4d368833cf0285fb1618bbfaf80..6742cf730ddc00438c1023a6652fcf5d4d4970f7 100644
--- a/third_party/WebKit/Source/core/editing/SurroundingTextTest.cpp
+++ b/third_party/WebKit/Source/core/editing/SurroundingTextTest.cpp
@@ -4,15 +4,16 @@
 
 #include "core/editing/SurroundingText.h"
 
+#include <memory>
 #include "core/dom/Document.h"
 #include "core/dom/Range.h"
 #include "core/dom/Text.h"
 #include "core/editing/Position.h"
 #include "core/editing/VisibleSelection.h"
 #include "core/html/HTMLElement.h"
+#include "core/html/TextControlElement.h"
 #include "core/testing/DummyPageHolder.h"
 #include "testing/gtest/include/gtest/gtest.h"
-#include <memory>
 
 namespace blink {
 
@@ -276,4 +277,21 @@ TEST_F(SurroundingTextTest, TreeRangeSelection) {
   }
 }
 
+TEST_F(SurroundingTextTest, TextAreaSelection) {
+  SetHTML(String("<textarea id='selection'>abc def ghi</textarea>"));
+
+  TextControlElement* text_ctrl =
+      (TextControlElement*)GetDocument().getElementById("selection");
+
+  text_ctrl->SetSelectionRange(4, 7);
+  VisibleSelection selection = CreateVisibleSelection(text_ctrl->Selection());
+
+  SurroundingText surrounding_text(
+      *CreateRange(FirstEphemeralRangeOf(selection)), 10);
+
+  EXPECT_EQ("abc def ghi", surrounding_text.Content().SimplifyWhiteSpace());
+  EXPECT_EQ(4u, surrounding_text.StartOffsetInContent());
+  EXPECT_EQ(7u, surrounding_text.EndOffsetInContent());
+}
+
 }  // namespace blink