Abort streams when the containing RenderFrameHost navigates or closes.

Previously, streams used by MimeHandlerViewGuest can be leaked if the
guest is closed before it finishes reading from the stream, blocking
further access to that resource. This CL adds tracking of
RenderFrameHosts containing MimeHandlerViewGuests and aborts the
corresponding streams when the containing RenderFrameHost navigates or
closes.

BUG=436345

Review URL: https://codereview.chromium.org/834113003

Cr-Commit-Position: refs/heads/master@{#311839}

1 files changed, 2 insertions, 4 deletions

diff --git a/extensions/common/extension_messages.h b/extensions/common/extension_messages.h
index 9e3e6bb..f5505438 100644
--- a/extensions/common/extension_messages.h
+++ b/extensions/common/extension_messages.h
@@ -798,11 +798,9 @@ IPC_MESSAGE_CONTROL4(ExtensionHostMsg_AttachGuest,
                      base::DictionaryValue /* attach_params */)
 
 // Tells the browser to create a mime handler guest view for a plugin.
-IPC_MESSAGE_CONTROL5(ExtensionHostMsg_CreateMimeHandlerViewGuest,
+IPC_MESSAGE_CONTROL3(ExtensionHostMsg_CreateMimeHandlerViewGuest,
                      int /* render_frame_id */,
-                     std::string /* embedder_url */,
-                     std::string /* content_url */,
-                     std::string /* mime_type */,
+                     std::string /* view_id */,
                      int /* element_instance_id */)
 
 // Sent when a query selector request is made from the automation API.