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

1 files changed, 0 insertions, 21 deletions

diff --git a/webkit/glue/resource_loader_bridge.h b/webkit/glue/resource_loader_bridge.h
index 1a3809d..813cd05 100644
--- a/webkit/glue/resource_loader_bridge.h
+++ b/webkit/glue/resource_loader_bridge.h
@@ -70,20 +70,6 @@ class ResourceLoaderBridge {
 
     // The appcache this response was loaded from, or kNoAppCacheId.
     int64 app_cache_id;
-
-    // A platform specific handle for a file that carries response data. This
-    // entry is used if the resource request is of type ResourceType::MEDIA and
-    // the underlying cache layer keeps the response data in a standalone file.
-#if defined(OS_POSIX)
-    // If the response data file is available, the file handle is stored in
-    // response_data_file.fd, its value is base::kInvalidPlatformFileValue
-    // otherwise.
-    base::FileDescriptor response_data_file;
-#elif defined(OS_WIN)
-    // An asynchronous file handle to the response data file, its value is
-    // base::kInvalidPlatformFileValue if the file is not available.
-    base::PlatformFile response_data_file;
-#endif
   };
 
   // See the SyncLoad method declared below.  (The name of this struct is not
@@ -114,13 +100,6 @@ class ResourceLoaderBridge {
    public:
     virtual ~Peer() {}
 
-    // Called as download progress is made.
-    // note: only for requests with LOAD_ENABLE_DOWNLOAD_FILE set and the
-    // resource is downloaded to a standalone file and the file handle to it is
-    // passed in ResponseInfo during OnReceivedResponse. Note that size may be
-    // unknown and |size| will be kuint64max in that case.
-    virtual void OnDownloadProgress(uint64 position, uint64 size) {}
-
     // Called as upload progress is made.
     // note: only for requests with LOAD_ENABLE_UPLOAD_PROGRESS set
     virtual void OnUploadProgress(uint64 position, uint64 size) = 0;