Partition blobs by top frame URL: allows the use of blobs within a third-party...

 storage/browser/blob/blob_url_store_impl.h    | 15 ++++-

 storage/browser/blob/features.cc              |  1 +

 .../public/mojom/blob/blob_url_store.mojom    | 13 +++-

 .../core/fileapi/public_url_manager.cc        | 33 +++++++++-

 9 files changed, 154 insertions(+), 15 deletions(-)

 .../core/fileapi/public_url_manager.cc        | 37 ++++++++++-

 9 files changed, 158 insertions(+), 15 deletions(-)

 create mode 100644 cromite_flags/third_party/blink/common/features_cc/Partition-blobs-by-top-frame-URL.inc

diff --git a/content/browser/renderer_host/render_frame_host_impl.cc b/content/browser/renderer_host/render_frame_host_impl.cc

diff --git a/third_party/blink/renderer/core/fileapi/public_url_manager.cc b/third_party/blink/renderer/core/fileapi/public_url_manager.cc

--- a/third_party/blink/renderer/core/fileapi/public_url_manager.cc

+++ b/third_party/blink/renderer/core/fileapi/public_url_manager.cc

@@ -61,6 +61,21 @@ static void RemoveFromNullOriginMapIfNecessary(const KURL& blob_url) {

@@ -61,6 +61,25 @@ static void RemoveFromNullOriginMapIfNecessary(const KURL& blob_url) {

     BlobURLNullOriginMap::GetInstance()->Remove(blob_url);

 }

+                                              ->GetSecurityContext()

+                                              ->GetSecurityOrigin());

+    }

+  } else if (auto* worker_global_scope =

+                 DynamicTo<WorkerGlobalScope>(execution_context)) {

+    top_level_site = BlinkSchemefulSite(

+      worker_global_scope->top_level_frame_security_origin());

+  }

+  return top_level_site;

+}

 }  // namespace

 PublicURLManager::PublicURLManager(ExecutionContext* execution_context)

@@ -158,7 +173,17 @@ String PublicURLManager::RegisterURL(URLRegistrable* registrable) {

@@ -158,7 +177,17 @@ String PublicURLManager::RegisterURL(URLRegistrable* registrable) {

     mojo::PendingReceiver<mojom::blink::Blob> blob_receiver =

         blob_remote.InitWithNewPipeAndPassReceiver();

     mojo_urls_.insert(url_string);

     registrable->CloneMojoBlob(std::move(blob_receiver));

@@ -208,7 +233,8 @@ void PublicURLManager::Resolve(

@@ -208,7 +237,8 @@ void PublicURLManager::Resolve(

   DCHECK(url.ProtocolIs("blob"));

 }

 void PublicURLManager::ResolveAsBlobURLToken(

@@ -221,7 +247,8 @@ void PublicURLManager::ResolveAsBlobURLToken(

@@ -221,7 +251,8 @@ void PublicURLManager::ResolveAsBlobURLToken(

   DCHECK(url.ProtocolIs("blob"));

   GetBlobURLStore().ResolveAsBlobURLToken(url, std::move(token_receiver),