This CB fixes the following issue1. http://code.google.com/p/chromium/issues/detail?id=206This is a performance issue while loading PDF documents. The fix is to support PDF fast webview, which is basically support for the NPN_RequestRead API, which allows a plugin to request specific byte ranges in HTTP GET requests. This also needs support for seekable streams. Our support for seekable streams is limited to HTTP servers which allow byte range requests. Firefox also supports a mode in which the the browser caches the file on disk for servers which don't support byte range requests. The plugin_data_stream.cc/.h files are being removed as there is not much value in their existence. The needed functionality is available in the PluginStreamUrl class, which now services manual data streams as well. Testing this is a touch tricky as we need a HTTP server which serves byte range requests. Will add those in a subsequent CB.Also fixed a bug in the multipart parser where we need to ignore leading newline characters while parsing the header.Bug=206

Review URL: http://codereview.chromium.org/2896

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@2400 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 8 insertions, 1 deletions

diff --git a/webkit/glue/plugins/plugin_stream_url.h b/webkit/glue/plugins/plugin_stream_url.h
index ddffcd0..17213a2 100644
--- a/webkit/glue/plugins/plugin_stream_url.h
+++ b/webkit/glue/plugins/plugin_stream_url.h
@@ -34,6 +34,12 @@ class PluginStreamUrl : public PluginStream,
   // it is still loading.
   virtual bool Close(NPReason reason);
 
+  virtual WebPluginResourceClient* AsResourceClient() { 
+    return static_cast<WebPluginResourceClient*>(this); 
+  }
+
+  virtual void CancelRequest();
+
   //
   // WebPluginResourceClient methods
   //
@@ -43,10 +49,11 @@ class PluginStreamUrl : public PluginStream,
                           uint32 expected_length,
                           uint32 last_modified,
                           bool* cancel);
-  void DidReceiveData(const char* buffer, int length);
+  void DidReceiveData(const char* buffer, int length, int data_offset);
   void DidFinishLoading();
   void DidFail();
 
+
  private:
   GURL url_;
   int id_;