Fix InputConnection.deleteSurroundingText()

content/public/android/javatests/src/org/chromium/content/browser/input/ImeTest.java

Index: content/public/android/javatests/src/org/chromium/content/browser/input/ImeTest.java
diff --git a/content/public/android/javatests/src/org/chromium/content/browser/input/ImeTest.java b/content/public/android/javatests/src/org/chromium/content/browser/input/ImeTest.java
index 75809c5eed25af2fe6f5d46f93d4f5d330b78796..142f77771d73bfb4c75fefb3e3c7c7c7d5ed877a 100644
--- a/content/public/android/javatests/src/org/chromium/content/browser/input/ImeTest.java
+++ b/content/public/android/javatests/src/org/chromium/content/browser/input/ImeTest.java
@@ -136,19 +136,49 @@ public class ImeTest extends ContentShellTestBase {
 
     @SmallTest
     @Feature({"TextInput", "Main"})
-    public void testDeleteSurroundingTextWithZeroValue() throws Throwable {
+    public void testDeleteSurroundingTextWithRangeSelection() throws Throwable {
         commitText("hello", 1);
         waitAndVerifyUpdateSelection(0, 5, 5, -1, -1);
-        deleteSurroundingText(0, 0);
 
-        setSelection(0, 0);
-        waitAndVerifyUpdateSelection(1, 0, 0, -1, -1);
+        setSelection(1, 4);
+        waitAndVerifyUpdateSelection(1, 1, 4, -1, -1);
+
         deleteSurroundingText(0, 0);
+        assertTextsAroundCursor("h", "ell", "o");
+
+        deleteSurroundingText(1, 1);
+        assertTextsAroundCursor("", "ell", "");
+
+        deleteSurroundingText(1, 0);
+        assertTextsAroundCursor("", "ell", "");
+
+        deleteSurroundingText(0, 1);
+        assertTextsAroundCursor("", "ell", "");
+    }
+
+    @SmallTest
+    @Feature({"TextInput", "Main"})
+    public void testDeleteSurroundingTextWithCursorSelection() throws Throwable {
+        commitText("hello", 1);
+        waitAndVerifyUpdateSelection(0, 5, 5, -1, -1);
 
         setSelection(2, 2);
-        waitAndVerifyUpdateSelection(2, 2, 2, -1, -1);
+        waitAndVerifyUpdateSelection(1, 2, 2, -1, -1);
+
         deleteSurroundingText(0, 0);
         assertTextsAroundCursor("he", "", "llo");
+
+        deleteSurroundingText(1, 1);
+        assertTextsAroundCursor("h", "", "lo");
+
+        deleteSurroundingText(10, 0);
+        assertTextsAroundCursor("", "", "lo");
+
+        deleteSurroundingText(0, 10);
+        assertTextsAroundCursor("", "", "");
+
+        deleteSurroundingText(10, 10);
+        assertTextsAroundCursor("", "", "");
     }
 
     @SmallTest