Introduces a new MHTML generation parameter specifying different behvaior for cache-control headers.

content/common/frame_messages.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // IPC messages for interacting with frames.
 // Multiply-included message file, hence no include guard.
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 13 matching lines @@
 #include "content/common/navigation_params.h"
 #include "content/common/resource_request_body.h"
 #include "content/common/savable_subframe.h"
 #include "content/public/common/color_suggestion.h"
 #include "content/public/common/common_param_traits.h"
 #include "content/public/common/console_message_level.h"
 #include "content/public/common/context_menu_params.h"
 #include "content/public/common/frame_navigate_params.h"
 #include "content/public/common/javascript_message_type.h"
 #include "content/public/common/message_port_types.h"
+#include "content/public/common/mhtml_generation.h"
 #include "content/public/common/page_importance_signals.h"
 #include "content/public/common/page_state.h"
 #include "content/public/common/resource_response.h"
 #include "content/public/common/stop_find_action.h"
 #include "content/public/common/three_d_api_types.h"
 #include "content/public/common/transition_element.h"
 #include "ipc/ipc_message_macros.h"
 #include "ipc/ipc_platform_file.h"
 #include "third_party/WebKit/public/platform/WebFocusType.h"
 #include "third_party/WebKit/public/web/WebFindOptions.h"
@@ skipping 450 matching lines @@
 
   // MHTML boundary marker / MIME multipart boundary maker.  The same
   // |mhtml_boundary_marker| should be used for serialization of each frame.
   IPC_STRUCT_MEMBER(std::string, mhtml_boundary_marker)
 
   // Whether to use binary encoding while serializing.  Binary encoding is not
   // supported outside of Chrome, so this should not be used if the MHTML is
   // intended for sharing.
   IPC_STRUCT_MEMBER(bool, mhtml_binary_encoding)
 
+  IPC_STRUCT_MEMBER(content::MHTMLCacheControlPolicy,
+                    mhtml_cache_control_policy)
+
   // Frame to content-id map.
   // Keys are routing ids of either RenderFrames or RenderFrameProxies.
   // Values are MHTML content-ids - see WebFrameSerializer::generateMHTMLParts.
   IPC_STRUCT_MEMBER(FrameMsg_SerializeAsMHTML_FrameRoutingIdToContentIdMap,
                     frame_routing_id_to_content_id)
 
   // |digests_of_uris_to_skip| contains digests of uris of MHTML parts that
   // should be skipped.  This helps deduplicate mhtml parts across frames.
   // SECURITY NOTE: Sha256 digests (rather than uris) are used to prevent
   // disclosing uris to other renderer processes;  the digests should be
@@ skipping 864 matching lines @@
 
 // Response to FrameMsg_GetSerializedHtmlWithLocalLinks.
 IPC_MESSAGE_ROUTED2(FrameHostMsg_SerializedHtmlWithLocalLinksResponse,
                     std::string /* data buffer */,
                     bool /* end of data? */)
 
 // Response to FrameMsg_SerializeAsMHTML.
 IPC_MESSAGE_ROUTED3(
     FrameHostMsg_SerializeAsMHTMLResponse,
     int /* job_id (used to match responses to requests) */,
-    bool /* true if success, false if error */,
+    content::MHTMLSerializationResult /* result of serialization */,
     std::set<std::string> /* digests of uris of serialized resources */)
 
 // Sent when the renderer updates hint for importance of a tab.
 IPC_MESSAGE_ROUTED1(FrameHostMsg_UpdatePageImportanceSignals,
                     content::PageImportanceSignals)
 
 // This message is sent from a RenderFrameProxy when sequential focus
 // navigation needs to advance into its actual frame.  |source_routing_id|
 // identifies the frame that issued this request.  This is used when pressing
 // <tab> or <shift-tab> hits an out-of-process iframe when searching for the
@@ skipping 46 matching lines @@
 IPC_MESSAGE_ROUTED3(FrameHostMsg_FindMatchRects_Reply,
                     int /* version */,
                     std::vector<gfx::RectF> /* rects */,
                     gfx::RectF /* active_rect */)
 #endif
 
 // Adding a new message? Stick to the sort order above: first platform
 // independent FrameMsg, then ifdefs for platform specific FrameMsg, then
 // platform independent FrameHostMsg, then ifdefs for platform specific
 // FrameHostMsg.