Fix out-of-bounds exception in SetComposingRegion().

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 db2abf86ee4fe044c4558596138af2ace2898236..d597e381117879393c52a0ec1c0275479c66bff8 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
@@ -454,6 +454,21 @@ public class ImeTest extends ContentShellTestBase {
 
     @SmallTest
     @Feature({"TextInput", "Main"})
+    public void testSetComposingRegionOutOfBounds() throws Throwable {
+        DOMUtils.focusNode(mContentViewCore, "textarea");
+        assertWaitForKeyboardStatus(true);
+
+        mConnection = (TestAdapterInputConnection) getAdapterInputConnection();
+        waitAndVerifyEditableCallback(mConnection.mImeUpdateQueue, 0, "", 0, 0, -1, -1);
+        setComposingText(mConnection, "hello", 1);
+
+        setComposingRegion(mConnection, 0, 0);
+        setComposingRegion(mConnection, 0, 9);
+        setComposingRegion(mConnection, 9, 0);

[jdduke (slow), 2014/08/07 20:07:31]

Nice, I assume this fails without your fix?

[bcwhite, 2014/08/07 20:10:20]

It does, yes.

+    }
+
+    @SmallTest
+    @Feature({"TextInput", "Main"})
     public void testEnterKeyEventWhileComposingText() throws Throwable {
         DOMUtils.focusNode(mContentViewCore, "input_radio");
         assertWaitForKeyboardStatus(false);