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, 13 insertions, 0 deletions

diff --git a/webkit/glue/multipart_response_delegate.h b/webkit/glue/multipart_response_delegate.h
index f5b8109..e7c1ba4 100644
--- a/webkit/glue/multipart_response_delegate.h
+++ b/webkit/glue/multipart_response_delegate.h
@@ -72,6 +72,19 @@ class MultipartResponseDelegate {
   void OnReceivedData(const char* data, int data_len);
   void OnCompletedRequest();
 
+  // Returns the multi part boundary string from the Content-type header
+  // in the response.
+  // Returns true on success.
+  static bool ReadMultipartBoundary(const WebCore::ResourceResponse& response,
+                                    std::string* multipart_boundary);
+
+  // Returns the lower and higher content ranges from an individual multipart
+  // in a multipart response.
+  // Returns true on success.
+  static bool ReadContentRanges(const WebCore::ResourceResponse& response,
+                                int* content_range_lower_bound,
+                                int* content_range_upper_bound);
+
  private:
   // Pointers back to our owning object so we can make callbacks as we parse
   // pieces of data.