[Android] Upstream the WebView find-in-page API implementation.

android_webview/native/aw_web_contents_delegate.cc

 // Copyright (c) 2012 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.
 
 #include "android_webview/native/aw_web_contents_delegate.h"
 
 #include "base/lazy_instance.h"
+#include "android_webview/browser/find_helper.h"
+#include "android_webview/native/aw_contents.h"
 #include "android_webview/native/aw_javascript_dialog_creator.h"
+#include "content/public/browser/web_contents.h"
+
+using content::WebContents;
 
 namespace android_webview {
 
 static base::LazyInstance<AwJavaScriptDialogCreator>::Leaky
     g_javascript_dialog_creator = LAZY_INSTANCE_INITIALIZER;
 
 AwWebContentsDelegate::AwWebContentsDelegate(
     JNIEnv* env,
     jobject obj)
     : WebContentsDelegateAndroid(env, obj) {
 }
 
 AwWebContentsDelegate::~AwWebContentsDelegate() {
 }
 
 content::JavaScriptDialogCreator*
 AwWebContentsDelegate::GetJavaScriptDialogCreator() {
   return g_javascript_dialog_creator.Pointer();
 }
 
+void AwWebContentsDelegate::FindReply(WebContents* web_contents,
+                                      int request_id,
+                                      int number_of_matches,
+                                      const gfx::Rect& selection_rect,
+                                      int active_match_ordinal,
+                                      bool final_update) {
+  AwContents* aw_contents = AwContents::FromWebContents(web_contents);
+  if (!aw_contents)
+    return;
+
+  aw_contents->GetFindHelper()->HandleFindReply(request_id,
+                                                number_of_matches,
+                                                active_match_ordinal,
+                                                final_update);
+}
+
 }  // namespace android_webview