Revert of Let ImeAdapterAndroid have the same lifecycle as its Java peer

content/browser/android/content_view_core_impl.cc

Index: content/browser/android/content_view_core_impl.cc
diff --git a/content/browser/android/content_view_core_impl.cc b/content/browser/android/content_view_core_impl.cc
index b3156c8933910772454537b92bc5d52cab2830b8..17971593dbac607362e23cc72dce30676e2bdbb6 100644
--- a/content/browser/android/content_view_core_impl.cc
+++ b/content/browser/android/content_view_core_impl.cc
@@ -1100,7 +1100,25 @@
   SendScreenRectsAndResizeWidget();
 }
 
-void ContentViewCoreImpl::UpdateImeAdapter(int text_input_type,
+long ContentViewCoreImpl::GetNativeImeAdapter(
+    JNIEnv* env,
+    const JavaParamRef<jobject>& obj) {
+  RenderWidgetHostViewAndroid* rwhva = GetRenderWidgetHostViewAndroid();
+  if (!rwhva)
+    return 0;
+  return rwhva->GetNativeImeAdapter();
+}
+
+void ContentViewCoreImpl::ForceUpdateImeAdapter(long native_ime_adapter) {
+  JNIEnv* env = AttachCurrentThread();
+  ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
+  if (obj.is_null())
+    return;
+  Java_ContentViewCore_forceUpdateImeAdapter(env, obj, native_ime_adapter);
+}
+
+void ContentViewCoreImpl::UpdateImeAdapter(long native_ime_adapter,
+                                           int text_input_type,
                                            int text_input_flags,
                                            int text_input_mode,
                                            const std::string& text,
@@ -1117,9 +1135,9 @@
 
   ScopedJavaLocalRef<jstring> jstring_text = ConvertUTF8ToJavaString(env, text);
   Java_ContentViewCore_updateImeAdapter(
-      env, obj, text_input_type, text_input_flags, text_input_mode,
-      jstring_text, selection_start, selection_end, composition_start,
-      composition_end, show_ime_if_needed, reply_to_request);
+      env, obj, native_ime_adapter, text_input_type, text_input_flags,
+      text_input_mode, jstring_text, selection_start, selection_end,
+      composition_start, composition_end, show_ime_if_needed, reply_to_request);
 }
 
 void ContentViewCoreImpl::SetAccessibilityEnabled(
@@ -1326,7 +1344,7 @@
            const JavaParamRef<jobject>& jweb_contents,
            const JavaParamRef<jobject>& jview_android_delegate,
            jlong jwindow_android,
-           jfloat dip_scale,
+           jfloat dipScale,
            const JavaParamRef<jobject>& retained_objects_set) {
   WebContentsImpl* web_contents = static_cast<WebContentsImpl*>(
       WebContents::FromJavaWebContents(jweb_contents));
@@ -1341,8 +1359,9 @@
   DCHECK(window_android);
   window_android->AddChild(view_android);
 
+  // TODO: pass dipScale.
   ContentViewCoreImpl* view = new ContentViewCoreImpl(
-      env, obj, web_contents, dip_scale, retained_objects_set);
+      env, obj, web_contents, dipScale, retained_objects_set);
   return reinterpret_cast<intptr_t>(view);
 }