WebApps: Removes request property from LaunchParams.

This brings the LaunchParams dictionary into line with what's discussed
in the explainer:
https://github.com/WICG/file-handling/blob/master/explainer.md

Bug: 829689
Change-Id: I3322099aeb8cdcf558acb8a59076fbbc285467e1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2012377Reviewed-by: Alan Cutter <alancutter@chromium.org>
Commit-Queue: Jay Harris <harrisjay@chromium.org>
Cr-Commit-Position: refs/heads/master@{#733887}

third_party/blink/renderer/modules/launch/launch_params.cc

@@ -4,9 +4,6 @@
 
 #include "third_party/blink/renderer/modules/launch/launch_params.h"
 
-#include "third_party/blink/public/mojom/fetch/fetch_api_request.mojom-blink.h"
-#include "third_party/blink/renderer/core/fetch/fetch_request_data.h"
-#include "third_party/blink/renderer/core/fetch/request.h"
 #include "third_party/blink/renderer/modules/native_file_system/native_file_system_handle.h"
 #include "third_party/blink/renderer/platform/heap/visitor.h"
 
@@ -17,22 +14,8 @@ LaunchParams::LaunchParams(HeapVector<Member<NativeFileSystemHandle>> files)
 
 LaunchParams::~LaunchParams() = default;
 
-Request* LaunchParams::request(ScriptState* script_state) {
-  if (!fetch_request_)
-    return nullptr;
-
-  if (!request_) {
-    request_ =
-        Request::Create(script_state, *fetch_request_.get(),
-                        FetchRequestData::ForServiceWorkerFetchEvent::kFalse);
-  }
-
-  return request_;
-}
-
 void LaunchParams::Trace(blink::Visitor* visitor) {
   visitor->Trace(files_);
-  visitor->Trace(request_);
   ScriptWrappable::Trace(visitor);
 }
 

third_party/blink/renderer/modules/launch/launch_params.h

@@ -5,17 +5,13 @@
 #ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_LAUNCH_LAUNCH_PARAMS_H_
 #define THIRD_PARTY_BLINK_RENDERER_MODULES_LAUNCH_LAUNCH_PARAMS_H_
 
-#include "third_party/blink/public/mojom/fetch/fetch_api_request.mojom-blink.h"
 #include "third_party/blink/renderer/modules/native_file_system/native_file_system_handle.h"
 #include "third_party/blink/renderer/platform/bindings/script_wrappable.h"
 #include "third_party/blink/renderer/platform/heap/heap.h"
 #include "third_party/blink/renderer/platform/heap/heap_allocator.h"
-#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
 
 namespace blink {
 
-class Request;
-class ScriptState;
 class Visitor;
 
 class LaunchParams final : public ScriptWrappable {
@@ -27,14 +23,11 @@ class LaunchParams final : public ScriptWrappable {
 
   // LaunchParams IDL interface.
   const HeapVector<Member<NativeFileSystemHandle>>& files() { return files_; }
-  Request* request(ScriptState* script_state);
 
   void Trace(blink::Visitor*) override;
 
  private:
   HeapVector<Member<NativeFileSystemHandle>> files_;
-  Member<Request> request_;
-  mojom::blink::FetchAPIRequestPtr fetch_request_;
 };
 
 }  // namespace blink

third_party/blink/renderer/modules/launch/launch_params.idl

@@ -7,7 +7,4 @@
 
 [RuntimeEnabled=FileHandling] interface LaunchParams {
   readonly attribute FrozenArray<FileSystemHandle> files;
-
-  [CallWith=ScriptState]
-  readonly attribute Request request;
 };