PlzNavigate: Implement RequestNavigation on the renderer side

content/common/frame_messages.h

Index: content/common/frame_messages.h
diff --git a/content/common/frame_messages.h b/content/common/frame_messages.h
index 02b9f15314a3f910cd8ac8dbdd8d98517a6eac21..b76113707f84f08da212f082c09b317a9fd498be 100644
--- a/content/common/frame_messages.h
+++ b/content/common/frame_messages.h
@@ -466,6 +466,11 @@ IPC_MESSAGE_ROUTED1(FrameMsg_SelectPopupMenuItem,
 #endif
 
 // PlzNavigate
+// Tells the renderer that a navigation has been requested.
+IPC_MESSAGE_ROUTED2(FrameMsg_RequestNavigation,
+                    content::CommonNavigationParams, /* common_params */
+                    content::RequestNavigationParams /* request_params */)

[nasko, 2014/10/08 17:40:32]

nit: let's leave an empty line between the IPC messages to be consistent with
the rest.

[clamy, 2014/10/10 02:33:11]

Done.

+// PlzNavigate
 // Tells the renderer that a navigation is ready to commit.  The renderer should
 // request |stream_url| to get access to the stream containing the body of the
 // response.