PlzNavigate: AppCache support.

content/renderer/render_frame_impl.cc

Index: content/renderer/render_frame_impl.cc
diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
index ec0a91c116c55a1080521c8eab573259a2a45480..b06a87d2d98fa1876fc8af3f76dfdc70713327d0 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -66,6 +66,7 @@
 #include "content/common/site_isolation_policy.h"
 #include "content/common/swapped_out_messages.h"
 #include "content/common/view_messages.h"
+#include "content/public/common/appcache_info.h"
 #include "content/public/common/associated_interface_provider.h"
 #include "content/public/common/bindings_policy.h"
 #include "content/public/common/browser_side_navigation_policy.h"
@@ -1122,6 +1123,7 @@ RenderFrameImpl::RenderFrameImpl(const CreateParams& params)
       frame_binding_(this),
       host_zoom_binding_(this),
       has_accessed_initial_document_(false),
+      appcache_host_id_(kAppCacheNoHostId),
       weak_factory_(this) {
   // We don't have a service_manager::Connection at this point, so use empty
   // identity/specs.
@@ -2868,7 +2870,8 @@ blink::WebApplicationCacheHost* RenderFrameImpl::createApplicationCacheHost(
     return NULL;
   return new RendererWebApplicationCacheHostImpl(
       RenderViewImpl::FromWebView(frame_->view()), client,
-      RenderThreadImpl::current()->appcache_dispatcher()->backend_proxy());
+      RenderThreadImpl::current()->appcache_dispatcher()->backend_proxy(),
+      appcache_host_id_);
 }
 
 blink::WebWorkerContentSettingsClientProxy*
@@ -5008,8 +5011,13 @@ void RenderFrameImpl::OnCommitNavigation(
       request_params.has_user_gesture ? new blink::WebScopedUserGesture(frame_)
                                       : nullptr);
 
+  appcache_host_id_ = request_params.appcache_host_id;
+
   NavigateInternal(common_params, StartNavigationParams(), request_params,
                    std::move(stream_override));
+
+  appcache_host_id_ = kAppCacheNoHostId;
+
   browser_side_navigation_pending_ = false;
 }