[ON HOLD] Implement pull-based design for content decoding

net/url_request/url_request_http_job.h

Index: net/url_request/url_request_http_job.h
diff --git a/net/url_request/url_request_http_job.h b/net/url_request/url_request_http_job.h
index 212ab51c3bc3f42b7b1ca392fb92b10e2ce01dde..702aec3f03e87b9c6cc617047ee0a57ed79c795d 100644
--- a/net/url_request/url_request_http_job.h
+++ b/net/url_request/url_request_http_job.h
@@ -22,7 +22,7 @@
 #include "net/base/net_export.h"
 #include "net/base/sdch_manager.h"
 #include "net/cookies/cookie_store.h"
-#include "net/filter/filter.h"
+#include "net/filter/sdch_policy_delegate.h"
 #include "net/http/http_request_info.h"
 #include "net/socket/connection_attempts.h"
 #include "net/url_request/url_request_backoff_manager.h"
@@ -61,6 +61,7 @@ class NET_EXPORT_PRIVATE URLRequestHttpJob : public URLRequestJob {
   void Start() override;
   void Kill() override;
   void GetConnectionAttempts(ConnectionAttempts* out) const override;
+  std::unique_ptr<SourceStream> SetUpSourceStream() override;
 
   RequestPriority priority() const {
     return priority_;
@@ -74,7 +75,7 @@ class NET_EXPORT_PRIVATE URLRequestHttpJob : public URLRequestJob {
 
   typedef base::RefCountedData<bool> SharedBoolean;
 
-  class HttpFilterContext;
+  class SdchContext;
 
   // Shadows URLRequestJob's version of this method.
   void NotifyBeforeNetworkStart(bool* defer);
@@ -125,7 +126,6 @@ class NET_EXPORT_PRIVATE URLRequestHttpJob : public URLRequestJob {
   bool GetRemoteEndpoint(IPEndPoint* endpoint) const override;
   int GetResponseCode() const override;
   void PopulateNetErrorDetails(NetErrorDetails* details) const override;
-  std::unique_ptr<Filter> SetupFilter() const override;
   bool CopyFragmentOnRedirect(const GURL& location) const override;
   bool IsSafeRedirect(const GURL& location) override;
   bool NeedsAuth() override;
@@ -151,7 +151,8 @@ class NET_EXPORT_PRIVATE URLRequestHttpJob : public URLRequestJob {
   void ResetTimer();
 
   void UpdatePacketReadTimes() override;
-  void RecordPacketStats(FilterContext::StatisticSelector statistic) const;
+  void RecordPacketStats(
+      SdchPolicyDelegate::Context::StatisticSelector statistic) const;
 
   // Starts the transaction if extensions using the webrequest API do not
   // object.
@@ -246,7 +247,7 @@ class NET_EXPORT_PRIVATE URLRequestHttpJob : public URLRequestJob {
   // When the transaction finished reading the request headers.
   base::TimeTicks receive_headers_end_;
 
-  std::unique_ptr<HttpFilterContext> filter_context_;
+  std::unique_ptr<SdchPolicyDelegate> sdch_delegate_;
 
   CompletionCallback on_headers_received_callback_;