Fix some flaky event tests in ImeTest

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 fc9d0f5259552bd9c044d4d5b6a7a685ba65e7ea..bb6bac15f0b846e1bcfcf2233c86d4f72f48845c 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
@@ -1356,7 +1356,7 @@ public class ImeTest extends ContentShellTestBase {
 
     @MediumTest
     @Feature({"TextInput"})
-    @DisabledTest(message = "crbug.com/628964")
+    @RetryOnFailure

[aelias_OOO_until_Jul13, 2016/11/04 03:40:07]

Just to confirm: is the only known reason this is needed because of the
screen-off problem?

[yabinh, 2016/11/04 03:49:09]

Yes.
I'll remove it once the screen-off problem is fixed.

     public void testContentEditableEvents_SetComposingText() throws Throwable {
         focusElementAndWaitForStateUpdate("contenteditable_event");
         waitForEventLogs("selectionchange,selectionchange");
@@ -1377,7 +1377,6 @@ public class ImeTest extends ContentShellTestBase {
     @MediumTest
     @Feature({"TextInput"})
     @RetryOnFailure
-    @DisabledTest(message = "crbug.com/650691")
     public void testInputTextEvents_SetComposingText() throws Throwable {
         beginBatchEdit();
         setComposingText("a", 1);
@@ -1393,7 +1392,7 @@ public class ImeTest extends ContentShellTestBase {
 
     @MediumTest
     @Feature({"TextInput"})
-    @DisabledTest(message = "crbug.com/628964")
+    @RetryOnFailure
     public void testContentEditableEvents_CommitText() throws Throwable {
         focusElementAndWaitForStateUpdate("contenteditable_event");
         waitForEventLogs("selectionchange,selectionchange");
@@ -1417,7 +1416,7 @@ public class ImeTest extends ContentShellTestBase {
 
     @MediumTest
     @Feature({"TextInput"})
-    @DisabledTest(message = "crbug.com/628964")
+    @RetryOnFailure
     public void testContentEditableEvents_DeleteSurroundingText() throws Throwable {
         focusElementAndWaitForStateUpdate("contenteditable_event");
         waitForEventLogs("selectionchange,selectionchange");