Move allocate instance id to chrome/.

content/browser/browser_plugin/browser_plugin_guest.h

Index: content/browser/browser_plugin/browser_plugin_guest.h
diff --git a/content/browser/browser_plugin/browser_plugin_guest.h b/content/browser/browser_plugin/browser_plugin_guest.h
index 3114129f0330ce71b823bd0dd23634188e29ad9e..a3a9d69e9b7597de58ec30137dbc6b7104986d0a 100644
--- a/content/browser/browser_plugin/browser_plugin_guest.h
+++ b/content/browser/browser_plugin/browser_plugin_guest.h
@@ -22,6 +22,7 @@
 #include <queue>
 
 #include "base/compiler_specific.h"
+#include "base/memory/linked_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/values.h"
 #include "content/common/edit_command.h"
@@ -118,9 +119,6 @@ class CONTENT_EXPORT BrowserPluginGuest : public WebContentsObserver {
 
   bool OnMessageReceivedFromEmbedder(const IPC::Message& message);
 
-  void Initialize(const BrowserPluginHostMsg_Attach_Params& params,
-                  WebContentsImpl* embedder_web_contents);
-
   WebContentsImpl* embedder_web_contents() const {
     return embedder_web_contents_;
   }
@@ -177,7 +175,7 @@ class CONTENT_EXPORT BrowserPluginGuest : public WebContentsObserver {
   // parameters passed into BrowserPlugin from JavaScript to be forwarded to
   // the content embedder.
   void Attach(WebContentsImpl* embedder_web_contents,
-              BrowserPluginHostMsg_Attach_Params params,
+              const BrowserPluginHostMsg_Attach_Params& params,
               const base::DictionaryValue& extra_params);
 
   // Returns whether BrowserPluginGuest is interested in receiving the given
@@ -213,6 +211,10 @@ class CONTENT_EXPORT BrowserPluginGuest : public WebContentsObserver {
 
   void WillDestroy();
 
+  void Initialize(const BrowserPluginHostMsg_Attach_Params& params,
+                  WebContentsImpl* embedder_web_contents,
+                  const base::DictionaryValue& extra_params);
+
   bool InAutoSizeBounds(const gfx::Size& size) const;
 
   // Message handlers for messages from embedder.
@@ -249,7 +251,6 @@ class CONTENT_EXPORT BrowserPluginGuest : public WebContentsObserver {
                    bool last_unlocked_by_target,
                    bool privileged);
   void OnLockMouseAck(int instance_id, bool succeeded);
-  void OnNavigateGuest(int instance_id, const std::string& src);
   void OnPluginDestroyed(int instance_id);
   // Resizes the guest's web contents.
   void OnResizeGuest(
@@ -378,7 +379,7 @@ class CONTENT_EXPORT BrowserPluginGuest : public WebContentsObserver {
 
   // This is a queue of messages that are destined to be sent to the embedder
   // once the guest is attached to a particular embedder.
-  std::queue<IPC::Message*> pending_messages_;
+  std::deque<linked_ptr<IPC::Message> > pending_messages_;
 
   BrowserPluginGuestDelegate* delegate_;