Attach ImeAdapter as soon as native side is ready

content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java

Index: content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java b/content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
index a5b5039861dc873ecf92e07bf59715a168fb59a9..d1fe462ad3c4c9759cc13ea548f91e839c41899b 100644
--- a/content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
+++ b/content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
@@ -1431,11 +1431,6 @@ public class ContentViewCore implements MotionEventDelegate, NavigationClient {
      * @see View#dispatchKeyEvent(KeyEvent)
      */
     public boolean dispatchKeyEvent(KeyEvent event) {
-        if (mImeAdapter != null &&
-                !mImeAdapter.isNativeImeAdapterAttached() && mNativeContentViewCore != 0) {
-            mImeAdapter.attach(nativeGetNativeImeAdapter(mNativeContentViewCore));
-        }
-
         if (getContentViewClient().shouldOverrideKeyEvent(event)) {
             return mContainerViewInternals.super_dispatchKeyEvent(event);
         }
@@ -2072,6 +2067,15 @@ public class ContentViewCore implements MotionEventDelegate, NavigationClient {
         }
     }
 
+    @SuppressWarnings("unused")
+    @CalledByNative
+    private void onWebContentsConnected() {
+        if (mImeAdapter != null &&
+                !mImeAdapter.isNativeImeAdapterAttached() && mNativeContentViewCore != 0) {
+            mImeAdapter.attach(nativeGetNativeImeAdapter(mNativeContentViewCore));
+        }
+    }
+
     /**
      * @return Whether a reload happens when this ContentView is activated.
      */