Add a utility method to receive an AwContents

android_webview/native/aw_contents.h

Index: android_webview/native/aw_contents.h
diff --git a/android_webview/native/aw_contents.h b/android_webview/native/aw_contents.h
index 347705a62b5ad4eb548d2ab2b8987d4f6e6006fd..9914337591c73e5ac465d9bbbb8efd7441cee46f 100644
--- a/android_webview/native/aw_contents.h
+++ b/android_webview/native/aw_contents.h
@@ -48,6 +48,10 @@ class AwContents : public FindHelper::Listener,
   // Returns the AwContents instance associated with |web_contents|, or NULL.
   static AwContents* FromWebContents(content::WebContents* web_contents);
 
+  // Returns the AwContents instance associated with with the given
+  // render_process_id and render_view_id, or NULL.
+  static AwContents* FromID(int render_process_id, int render_view_id);
+
   AwContents(JNIEnv* env,
              jobject obj,
              jobject web_contents_delegate);