Remove code path that passes a file handle to the renderer

Since the code now does range request without any caching
the code path for passing file handle is not used any more.

Changes:
1. Remove response_data_file in webkit_glue::ResourceResponseHead
2. Remove response_data_file in net::ResourceInfo
3. Remove code that passes file handle using IPC
4. Remove code that passes file hadnle from network layer to ResourceDispatcherHost
5. Remove MediaResourceHandler
6. Remove code in disk_cache that expose the file handle
7. Remove ChromeURLRequestContext::CreateOffTheRecordForMedia() so no more OTR request context for media, in OTR mode simply memory cache is used
8. Reset cache size for media cache to default

BUG=12249
BUG=12256

Review URL: http://codereview.chromium.org/113931

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@17227 0039d316-1c4b-4281-b951-d872f2087c98

3 files changed, 0 insertions, 26 deletions

diff --git a/net/url_request/url_request.h b/net/url_request/url_request.h
index 7798fa7..16a3286 100644
--- a/net/url_request/url_request.h
+++ b/net/url_request/url_request.h
@@ -333,13 +333,6 @@ class URLRequest {
     return response_info_.ssl_info;
   }
 
-  // Returns the platform specific file handle for the standalone file that
-  // contains response data. base::kInvalidPlatformFileValue is returned if
-  // such file is not available.
-  base::PlatformFile response_data_file() {
-    return response_info_.response_data_file;
-  }
-
   // Returns the cookie values included in the response, if the request is one
   // that can have cookies.  Returns true if the request is a cookie-bearing
   // type, false otherwise.  This method may only be called once the
diff --git a/net/url_request/url_request_file_job.cc b/net/url_request/url_request_file_job.cc
index 7941424..67f4fb2 100644
--- a/net/url_request/url_request_file_job.cc
+++ b/net/url_request/url_request_file_job.cc
@@ -184,24 +184,6 @@ bool URLRequestFileJob::GetMimeType(std::string* mime_type) const {
   return net::GetMimeTypeFromFile(file_path_, mime_type);
 }
 
-void URLRequestFileJob::GetResponseInfo(net::HttpResponseInfo* info) {
-  DCHECK(request_);
-
-  // If we have enabled downloading the file, the requester expects to receive
-  // a file handle to the file. Since we are serving file:/// url requests we
-  // can provide such a handle if the file exists.
-  bool created;
-  if ((request_->load_flags() & net::LOAD_ENABLE_DOWNLOAD_FILE) &&
-      stream_.IsOpen()) {
-        info->response_data_file =
-            base::CreatePlatformFile(file_path_.ToWStringHack(),
-                                     base::PLATFORM_FILE_OPEN |
-                                     base::PLATFORM_FILE_READ |
-                                     base::PLATFORM_FILE_ASYNC,
-                                     &created);
-  }
-}
-
 void URLRequestFileJob::SetExtraRequestHeaders(const std::string& headers) {
   // We only care about "Range" header here.
   std::vector<net::HttpByteRange> ranges;
diff --git a/net/url_request/url_request_file_job.h b/net/url_request/url_request_file_job.h
index 108a7cf..f7da8c1 100644
--- a/net/url_request/url_request_file_job.h
+++ b/net/url_request/url_request_file_job.h
@@ -31,7 +31,6 @@ class URLRequestFileJob : public URLRequestJob {
   virtual bool GetContentEncodings(
       std::vector<Filter::FilterType>* encoding_type);
   virtual bool GetMimeType(std::string* mime_type) const;
-  virtual void GetResponseInfo(net::HttpResponseInfo* info);
   virtual void SetExtraRequestHeaders(const std::string& headers);
 
   static URLRequest::ProtocolFactory Factory;