Classify navigations without page id in parallel to the existing classifier.

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 8a4fb0c3d2a45029db222d5bfa051d74aeb36b09..cd516ce548baa06081cef62b62c353511b5e3126 100644
--- a/content/common/frame_messages.h
+++ b/content/common/frame_messages.h
@@ -111,6 +111,8 @@ IPC_STRUCT_END()
 IPC_STRUCT_BEGIN(FrameHostMsg_DidFailProvisionalLoadWithError_Params)
   // Error code as reported in the DidFailProvisionalLoad callback.
   IPC_STRUCT_MEMBER(int, error_code)
+  // The unique id of the navigation that failed.
+  IPC_STRUCT_MEMBER(int, nav_entry_id)
   // An error message generated from the error_code. This can be an empty
   // string if we were unable to find a meaningful description.
   IPC_STRUCT_MEMBER(base::string16, error_description)
@@ -123,6 +125,7 @@ IPC_STRUCT_END()
 
 IPC_STRUCT_TRAITS_BEGIN(content::FrameNavigateParams)
   IPC_STRUCT_TRAITS_MEMBER(page_id)
+  IPC_STRUCT_TRAITS_MEMBER(nav_entry_id)
   IPC_STRUCT_TRAITS_MEMBER(url)
   IPC_STRUCT_TRAITS_MEMBER(base_url)
   IPC_STRUCT_TRAITS_MEMBER(referrer)
@@ -141,6 +144,10 @@ IPC_STRUCT_BEGIN_WITH_PARENT(FrameHostMsg_DidCommitProvisionalLoad_Params,
                              content::FrameNavigateParams)
   IPC_STRUCT_TRAITS_PARENT(content::FrameNavigateParams)
 
+  // Whether this commit created a new entry. TODO(avi): Does this need to go in
+  // FrameNavigateParams, instead?

[Charlie Reis, 2015/04/10 23:54:21]

If we don't know it until commit time, then it probably belongs here rather than
FrameNavigateParams.

[Avi (use Gerrit), 2015/04/13 22:42:48]

Good point.

+  IPC_STRUCT_MEMBER(bool, did_create_new_entry)
+
   // Information regarding the security of the connection (empty if the
   // connection was not secure).
   IPC_STRUCT_MEMBER(std::string, security_info)
@@ -242,6 +249,7 @@ IPC_STRUCT_TRAITS_BEGIN(content::RequestNavigationParams)
   IPC_STRUCT_TRAITS_MEMBER(request_time)
   IPC_STRUCT_TRAITS_MEMBER(page_state)
   IPC_STRUCT_TRAITS_MEMBER(page_id)
+  IPC_STRUCT_TRAITS_MEMBER(nav_entry_id)
   IPC_STRUCT_TRAITS_MEMBER(pending_history_list_offset)
   IPC_STRUCT_TRAITS_MEMBER(current_history_list_offset)
   IPC_STRUCT_TRAITS_MEMBER(current_history_list_length)