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Unified Diff: content/common/frame_messages.h

Issue 2731283003: (Reland) Discard compositor frames from unloaded web content (Closed)
Patch Set: Initialize field to zero Created 3 years, 9 months ago
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Index: content/common/frame_messages.h
diff --git a/content/common/frame_messages.h b/content/common/frame_messages.h
index 774d9cb024221bc947d210933193a33648d352d4..5ef2e7b7c3c2a76102100650056f6880a61fb765 100644
--- a/content/common/frame_messages.h
+++ b/content/common/frame_messages.h
@@ -304,6 +304,11 @@ IPC_STRUCT_BEGIN_WITH_PARENT(FrameHostMsg_DidCommitProvisionalLoad_Params,
// in BeginNavigationParams.
IPC_STRUCT_MEMBER(GURL, searchable_form_url)
IPC_STRUCT_MEMBER(std::string, searchable_form_encoding)
+
+ // This is a non-decreasing value that the browser process can use to
+ // identify and discard compositor frames that correspond to now-unloaded
+ // web content.
+ IPC_STRUCT_MEMBER(uint32_t, content_source_id)
IPC_STRUCT_END()
IPC_STRUCT_BEGIN(FrameMsg_PostMessage_Params)
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