Add cross-origin loading of NEXEs for MIME type handlers

src/trusted/plugin/ppapi/plugin_ppapi.h

Index: src/trusted/plugin/ppapi/plugin_ppapi.h
===================================================================
--- src/trusted/plugin/ppapi/plugin_ppapi.h	(revision 4752)
+++ src/trusted/plugin/ppapi/plugin_ppapi.h	(working copy)
@@ -34,6 +34,11 @@
 
 namespace plugin {
 
+// The default MIME type for the NaCl plugin.
+// TODO(abarth): This declaration should be in a more general location so it
+//               can be shared with the NPAPI code.

[polina, 2011/04/15 06:24:57]

what NPAPI code?

[abarth-chromium, 2011/04/15 06:36:40]

Ah, I'm working against an old version of the plugin where that code still
exists.  Removed.

+extern const char* const kNaClMIMEType;
+
 // Encapsulates a PPAPI NaCl plugin.
 class PluginPpapi : public pp::Instance, public Plugin {
  public:
@@ -91,6 +96,12 @@
   // or NACL_NO_FILE_DESC. The caller must take ownership of the descriptor.
   int32_t GetPOSIXFileDesc(const nacl::string& url);
 
+  // The MIME type used to instantiate this instance of the NaCl plugin.
+  // Typically, the MIME type will be application/x-nacl.  However, if the NEXE
+  // is being used as a content type handler for another content type (such as
+  // PDF), then this function will return that type.
+  const std::string& mime_type() const { return mime_type_; }

[polina, 2011/04/15 06:24:57]

we use nacl::string

[abarth-chromium, 2011/04/15 06:36:40]

Done.

+
  private:
   NACL_DISALLOW_COPY_AND_ASSIGN(PluginPpapi);
   // Prevent construction and destruction from outside the class:
@@ -181,6 +192,8 @@
   pp::Rect replayDidChangeViewPosition;
   pp::Rect replayDidChangeViewClip;
 
+  std::string mime_type_;
+
   // Keep track of the FileDownloaders created to fetch urls.
   std::set<FileDownloader*> url_downloaders_;
   // Keep track of file descriptors opened by StreamAsFile().