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

android_webview/native/aw_web_contents_delegate.cc

Index: android_webview/native/aw_web_contents_delegate.cc
diff --git a/android_webview/native/aw_web_contents_delegate.cc b/android_webview/native/aw_web_contents_delegate.cc
index 249ee0f51fadf7a86a6efe8ee61125ec1ed8a394..2a04d2dd7f29f0a6521218eb4dc9085e7658e012 100644
--- a/android_webview/native/aw_web_contents_delegate.cc
+++ b/android_webview/native/aw_web_contents_delegate.cc
@@ -5,7 +5,12 @@
 #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 {
 
@@ -26,4 +31,20 @@ 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