[Presentation API] (alternative) 1-UA: send message between controller and receiver page

content/public/browser/presentation_session.cc

Index: content/public/browser/presentation_session.cc
diff --git a/content/public/browser/presentation_session.cc b/content/public/browser/presentation_session.cc
index ceca42d9f895fd37093852e491022a92650c13af..6dce417e040a3fd1c941fa0fbd7bc69a5e6ba3de 100644
--- a/content/public/browser/presentation_session.cc
+++ b/content/public/browser/presentation_session.cc
@@ -9,7 +9,17 @@ namespace content {
 PresentationSessionInfo::PresentationSessionInfo(
     const GURL& presentation_url,
     const std::string& presentation_id)
-    : presentation_url(presentation_url), presentation_id(presentation_id) {}
+    : presentation_url(presentation_url),

[imcheng, 2016/11/01 17:20:29]

nit: Use the delegated constructor pattern:
PresentationSessionInfo(presentation_url, presentation_id, false)

[zhaobin, 2016/11/02 03:55:47]

Done.

+      presentation_id(presentation_id),
+      is_offscreen(false) {}
+
+PresentationSessionInfo::PresentationSessionInfo(
+    const GURL& presentation_url,
+    const std::string& presentation_id,
+    bool is_offscreen)
+    : presentation_url(presentation_url),
+      presentation_id(presentation_id),
+      is_offscreen(is_offscreen) {}
 
 PresentationSessionInfo::~PresentationSessionInfo() {
 }