Overlay content is its own class

chrome/browser/android/bottombar/contextualsearch/contextual_search_panel.h

-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CHROME_BROWSER_ANDROID_BOTTOMBAR_CONTEXTUALSEARCH_CONTEXTUAL_SEARCH_PANEL_H_
-#define CHROME_BROWSER_ANDROID_BOTTOMBAR_CONTEXTUALSEARCH_CONTEXTUAL_SEARCH_PANEL_H_
-
-#include "base/android/jni_android.h"
-#include "base/task/cancelable_task_tracker.h"
-#include "chrome/browser/android/contextualsearch/contextual_search_context.h"
-
-namespace content {
-class WebContents;
-}  // namespace content
-
-namespace web_contents_delegate_android {
-class WebContentsDelegateAndroid;
-}  // namespace web_contents_delegate_android
-
-// Manages the native extraction and request logic for Contextual Search,
-// and interacts with the Java ContextualSearchPanel for UX.
-// Most of the work is done by the associated ContextualSearchDelegate.
-class ContextualSearchPanel {
- public:
-  // Constructs a native manager associated with the Java manager.
-  ContextualSearchPanel(JNIEnv* env, jobject obj);
-  virtual ~ContextualSearchPanel();
-
-  // Called by the Java ContextualSearchPanel when it is being destroyed.
-  void Destroy(JNIEnv* env, jobject obj);
-
-  // Removes a search URL from history. |search_start_time_ms| represents the
-  // time at which |search_url| was committed.
-  void RemoveLastHistoryEntry(JNIEnv* env,
-                              jobject obj,
-                              jstring search_url,
-                              jlong search_start_time_ms);
-
-  // Takes ownership of the WebContents associated with the given
-  // |ContentViewCore| which holds the Contextual Search Results.
-  void SetWebContents(JNIEnv* env, jobject obj, jobject jcontent_view_core,
-                      jobject jweb_contents_delegate);
-
-  // Destroys the WebContents.
-  void DestroyWebContents(JNIEnv* env, jobject jobj);
-
-  // Sets the delegate used to convert navigations to intents.
-  void SetInterceptNavigationDelegate(JNIEnv* env,
-                                      jobject obj,
-                                      jobject delegate,
-                                      jobject jweb_contents);
-
- private:
-  // Our global reference to the Java ContextualSearchPanel.
-  base::android::ScopedJavaGlobalRef<jobject> java_manager_;
-
-  // Used if we need to clear history.
-  base::CancelableTaskTracker history_task_tracker_;
-
-  // The WebContents that holds the panel content.
-  scoped_ptr<content::WebContents> web_contents_;
-  scoped_ptr<web_contents_delegate_android::WebContentsDelegateAndroid>
-      web_contents_delegate_;
-
-  DISALLOW_COPY_AND_ASSIGN(ContextualSearchPanel);
-};
-
-bool RegisterContextualSearchPanel(JNIEnv* env);
-
-#endif  // CHROME_BROWSER_ANDROID_BOTTOMBAR_CONTEXTUALSEARCH_CONTEXTUAL_SEARCH_PANEL_H_