Make SdchManager per-profile.

net/filter/mock_filter_context.cc

Index: net/filter/mock_filter_context.cc
diff --git a/net/filter/mock_filter_context.cc b/net/filter/mock_filter_context.cc
index 06905c0e070790be3cc532623f9c980d328cf4c5..eb3484c19eb1eabcbc23a3d2df9e4ab47d8771ea 100644
--- a/net/filter/mock_filter_context.cc
+++ b/net/filter/mock_filter_context.cc
@@ -4,13 +4,16 @@
 
 #include "net/filter/mock_filter_context.h"
 
+#include "net/url_request/url_request_context.h"
+
 namespace net {
 
 MockFilterContext::MockFilterContext()
     : is_cached_content_(false),
       is_download_(false),
       is_sdch_response_(false),
-      response_code_(-1) {
+      response_code_(-1),
+      context_(new URLRequestContext()) {
 }
 
 MockFilterContext::~MockFilterContext() {}
@@ -49,4 +52,8 @@ int64 MockFilterContext::GetByteReadCount() const { return 0; }
 
 int MockFilterContext::GetResponseCode() const { return response_code_; }
 
+const URLRequestContext* MockFilterContext::GetURLRequestContext() const {
+  return context_.get();
+}
+
 }  // namespace net