Fix the bug that matras are input twice for Indian languages.

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 3a422176f6bc7d7761812ef566fc378d2f5fecc3..907a7bdb3c6ff55335e2533684b6f6f9028efe3f 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
@@ -123,6 +123,22 @@ public class ImeTest extends ContentShellTestBase {
         assertWaitForKeyboardStatus(false);
     }
 
+    // crbug.com/620690
+    @CommandLineFlags.Add("enable-features=ImeThread")

[yosin_UTC9, 2016/07/13 07:56:07]

Could you write test in InputMethodControllerTest.cpp?
We can verify this in unit test rather than integration test.

+    @SmallTest
+    @Feature({"TextInput", "Main"})
+    public void testFinishComposingTextWithHindhiMatra() throws Throwable {
+        commitText("a", 1);
+        waitAndVerifyUpdateSelection(0, 1, 1, -1, -1);
+
+        setComposingText("\u0C03", 1);
+        waitAndVerifyUpdateSelection(1, 2, 2, 1, 2);
+
+        finishComposingText();
+        waitAndVerifyUpdateSelection(2, 2, 2, -1, -1);
+        assertTextsAroundCursor("a\u0C03", "", "");
+    }
+
     @SmallTest
     @Feature({"TextInput", "Main"})
     public void testDeleteSurroundingTextWithZeroValue() throws Throwable {