Inline PdfViewWebPlugin::CreateUrlLoaderInternal()

Inlines PdfViewWebPlugin::CreateUrlLoaderInternal() into the call sites,
as this method does very little now.

Also gets rid of UrlLoader::GrantUniversalAccess(), which the PDF viewer
always uses for all requests.

Bug: 1322928
Change-Id: I34c49fb2f83debeb52515819c21d1e188f0f452d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3710222
Auto-Submit: K. Moon <kmoon@chromium.org>
Reviewed-by: Nigi <nigi@chromium.org>
Commit-Queue: Nigi <nigi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1015447}

pdf/loader/url_loader.cc

@@ -77,12 +77,6 @@ UrlLoader::UrlLoader(base::WeakPtr<Client> client)
 
 UrlLoader::~UrlLoader() = default;
 
-// Modeled on `content::PepperURLLoaderHost::OnHostMsgGrantUniversalAccess()`.
-void UrlLoader::GrantUniversalAccess() {
-  DCHECK_EQ(state_, LoadingState::kWaitingToOpen);
-  grant_universal_access_ = true;
-}
-
 // Modeled on `content::PepperURLLoaderHost::OnHostMsgOpen()`.
 void UrlLoader::Open(const UrlRequest& request,
                      base::OnceCallback<void(int)> callback) {
@@ -140,7 +134,7 @@ void UrlLoader::Open(const UrlRequest& request,
 
   // TODO(crbug.com/822081): Revisit whether we need universal access.
   blink::WebAssociatedURLLoaderOptions options;
-  options.grant_universal_access = grant_universal_access_;
+  options.grant_universal_access = true;
   ignore_redirects_ = request.ignore_redirects;
   blink_loader_ = client_->CreateAssociatedURLLoader(options);
   blink_loader_->LoadAsynchronously(blink_request, this);

pdf/loader/url_loader.h

@@ -125,11 +125,6 @@ class UrlLoader final : public blink::WebAssociatedURLLoaderClient {
   UrlLoader& operator=(const UrlLoader&) = delete;
   ~UrlLoader() override;
 
-  // Tries to grant the loader the capability to make unrestricted cross-origin
-  // requests ("universal access," in `blink::SecurityOrigin` terms). Must be
-  // called before `Open()`.
-  void GrantUniversalAccess();
-
   // Mimic `pp::URLLoader`:
   void Open(const UrlRequest& request, base::OnceCallback<void(int)> callback);
   void ReadResponseBody(base::span<char> buffer,
@@ -178,7 +173,6 @@ class UrlLoader final : public blink::WebAssociatedURLLoaderClient {
   void SetLoadComplete(int32_t result);
 
   base::WeakPtr<Client> client_;
-  bool grant_universal_access_ = false;
 
   LoadingState state_ = LoadingState::kWaitingToOpen;
   int32_t complete_result_ = 0;

pdf/loader/url_loader_unittest.cc

@@ -189,12 +189,6 @@ class UrlLoaderTest : public testing::Test {
   blink::WebURLRequest saved_request_;
 };
 
-TEST_F(UrlLoaderTest, GrantUniversalAccess) {
-  loader_->GrantUniversalAccess();
-  loader_->Open(UrlRequest(), mock_callback_.Get());
-  EXPECT_TRUE(fake_client_.saved_options().grant_universal_access);
-}
-
 TEST_F(UrlLoaderTest, Open) {
   EXPECT_CALL(*mock_url_loader_, LoadAsynchronously);
   EXPECT_CALL(mock_callback_, Run).Times(0);
@@ -204,7 +198,7 @@ TEST_F(UrlLoaderTest, Open) {
   request.method = "FAKE";
   loader_->Open(request, mock_callback_.Get());
 
-  EXPECT_FALSE(fake_client_.saved_options().grant_universal_access);
+  EXPECT_TRUE(fake_client_.saved_options().grant_universal_access);
   EXPECT_EQ(GURL("http://example.com/fake.pdf"), GURL(saved_request_.Url()));
   EXPECT_EQ("FAKE", saved_request_.HttpMethod().Ascii());
   EXPECT_EQ(GURL(kOriginUrl),

pdf/pdf_view_web_plugin.cc

@@ -837,7 +837,7 @@ void PdfViewWebPlugin::LoadUrl(base::StringPiece url,
   request.method = "GET";
   request.ignore_redirects = true;
 
-  std::unique_ptr<UrlLoader> loader = CreateUrlLoaderInternal();
+  auto loader = std::make_unique<UrlLoader>(weak_factory_.GetWeakPtr());
   UrlLoader* raw_loader = loader.get();
   raw_loader->Open(request,
                    base::BindOnce(std::move(callback), std::move(loader)));
@@ -857,7 +857,7 @@ void PdfViewWebPlugin::SubmitForm(const std::string& url,
   request.method = "POST";
   request.body.assign(static_cast<const char*>(data), length);
 
-  form_loader_ = CreateUrlLoaderInternal();
+  form_loader_ = std::make_unique<UrlLoader>(weak_factory_.GetWeakPtr());
   form_loader_->Open(request, base::BindOnce(&PdfViewWebPlugin::DidFormOpen,
                                              weak_factory_.GetWeakPtr()));
 }
@@ -878,13 +878,7 @@ std::unique_ptr<UrlLoader> PdfViewWebPlugin::CreateUrlLoader() {
     SetContentRestrictions(kContentRestrictionSave | kContentRestrictionPrint);
   }
 
-  return CreateUrlLoaderInternal();
-}
-
-std::unique_ptr<UrlLoader> PdfViewWebPlugin::CreateUrlLoaderInternal() {
-  auto loader = std::make_unique<UrlLoader>(weak_factory_.GetWeakPtr());
-  loader->GrantUniversalAccess();
-  return loader;
+  return std::make_unique<UrlLoader>(weak_factory_.GetWeakPtr());
 }
 
 std::vector<PDFEngine::Client::SearchStringResult>

pdf/pdf_view_web_plugin.h

@@ -409,9 +409,6 @@ class PdfViewWebPlugin final : public PdfViewPluginBase,
   // Handles `Open()` result for `form_loader_`.
   void DidFormOpen(int32_t result);
 
-  // Creates a URL loader with universal access.
-  std::unique_ptr<UrlLoader> CreateUrlLoaderInternal();
-
   // Handles message for saving the PDF.
   void HandleSaveMessage(const base::Value::Dict& message);
   void SaveToBuffer(const std::string& token);