Add JUnit tests for ImeThread activation

content/public/android/java/src/org/chromium/content/browser/input/ThreadedInputConnectionFactory.java

Index: content/public/android/java/src/org/chromium/content/browser/input/ThreadedInputConnectionFactory.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/input/ThreadedInputConnectionFactory.java b/content/public/android/java/src/org/chromium/content/browser/input/ThreadedInputConnectionFactory.java
index f81493c3508156b9f4930708f3fe2181b40b8c08..497481bfbbe35db438892c4a0c3e6d5aab69fe63 100644
--- a/content/public/android/java/src/org/chromium/content/browser/input/ThreadedInputConnectionFactory.java
+++ b/content/public/android/java/src/org/chromium/content/browser/input/ThreadedInputConnectionFactory.java
@@ -203,7 +203,7 @@ public class ThreadedInputConnectionFactory implements ChromiumBaseInputConnecti
         if (DEBUG_LOGS) Log.w(TAG, "checkRegisterResult - retry: " + retry);
         // Success.
         if (mInputMethodManagerWrapper.isActive(mProxyView)) {
-            mInputMethodUma.recordProxyViewSuccess();
+            onRegisterProxyViewSuccess();
             return;
         }
 
@@ -214,12 +214,18 @@ public class ThreadedInputConnectionFactory implements ChromiumBaseInputConnecti
             return;
         }
 
-        onRegisterProxyViewFailed();
+        onRegisterProxyViewFailure();
     }
 
     @VisibleForTesting
-    protected void onRegisterProxyViewFailed() {
-        Log.w(TAG, "onRegisterProxyViewFailed");
+    protected void onRegisterProxyViewSuccess() {
+        Log.d(TAG, "onRegisterProxyViewSuccess");
+        mInputMethodUma.recordProxyViewSuccess();
+    }
+
+    @VisibleForTesting
+    protected void onRegisterProxyViewFailure() {
+        Log.w(TAG, "onRegisterProxyViewFailure");
         mInputMethodUma.recordProxyViewFailure();
     }