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

content/public/browser/render_view_host.h

Index: content/public/browser/render_view_host.h
diff --git a/content/public/browser/render_view_host.h b/content/public/browser/render_view_host.h
index 5f0e686bd738a8d1435a0cf7660979509ab80184..0e95386f51994f07645cd662793ccb3a1e5b3237 100644
--- a/content/public/browser/render_view_host.h
+++ b/content/public/browser/render_view_host.h
@@ -273,6 +273,14 @@ class CONTENT_EXPORT RenderViewHost : virtual public RenderWidgetHost {
 
   // Asks the renderer to send the rects of the current find matches.
   virtual void RequestFindMatchRects(int current_version) = 0;
+
+  // Synchronous find request. Returns the number of matches found and the
+  // ordinal of the active match. Required by the legacy Android WebView API.
+  virtual void SynchronousFind(int request_id,
+                               const string16& search_text,
+                               const WebKit::WebFindOptions& options,
+                               int* match_count,
+                               int* active_ordinal) = 0;
 #endif
 
 };