Update process sharing rules for hosted and isolated apps.

chrome/browser/extensions/extension_info_map.cc

Index: chrome/browser/extensions/extension_info_map.cc
diff --git a/chrome/browser/extensions/extension_info_map.cc b/chrome/browser/extensions/extension_info_map.cc
index d3210a6f08346a4e77dd9b8c35db2d8f1f36c67c..d48d4e02ada9056f4ca2e33c80ae01ebf22753ed 100644
--- a/chrome/browser/extensions/extension_info_map.cc
+++ b/chrome/browser/extensions/extension_info_map.cc
@@ -108,10 +108,10 @@ bool ExtensionInfoMap::CanCrossIncognito(const Extension* extension) {
 
 void ExtensionInfoMap::RegisterExtensionProcess(const std::string& extension_id,
                                                 int process_id) {
-  if (!process_map_.Insert(extension_id, process_id)) {
-    NOTREACHED() << "Duplicate extension process registration for: "
-                 << extension_id << "," << process_id << ".";

[Charlie Reis, 2011/11/23 23:46:54]

aa: I was hitting this NOTREACHED when loading a second instance of the same
hosted app.  This will usually go into a new process, but it may share a process
if we're over the limit.

I've filed http://crbug.com/105328 to figure out the right solution, since this
won't work.

-  }
+  // An extension may be added multiple times for the same process, such as
+  // multiple instances of the same hosted app once the process limit is
+  // reached.
+  process_map_.Insert(extension_id, process_id);
 }
 
 void ExtensionInfoMap::UnregisterExtensionProcess(