[Offline Pages] Handle prerender FinalStatus UnsupportedScheme as a cancel rather than failure.

chrome/browser/android/offline_pages/prerendering_loader_unittest.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/android/offline_pages/prerendering_loader.h"
 
 #include "base/bind.h"
 #include "base/memory/ptr_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/run_loop.h"
@@ skipping 129 matching lines @@
 };
 
 PrerenderingLoaderTest::PrerenderingLoaderTest()
     : thread_bundle_(content::TestBrowserThreadBundle::IO_MAINLOOP),
       callback_load_status_(Offliner::RequestStatus::UNKNOWN) {}
 
 void PrerenderingLoaderTest::SetUp() {
   loader_.reset(new PrerenderingLoader(&profile_));
   test_adapter_ = new TestAdapter(loader_.get());
   loader_->SetAdapterForTesting(base::WrapUnique(test_adapter_));
+  callback_called_ = false;
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
 }
 
 void PrerenderingLoaderTest::OnLoadDone(Offliner::RequestStatus load_status,
                                         content::WebContents* web_contents) {
   callback_called_ = true;
   callback_load_status_ = load_status;
 }
 
 TEST_F(PrerenderingLoaderTest, CanPrerender) {
@@ skipping 85 matching lines @@
   EXPECT_TRUE(callback_called());
   // We did not provide any WebContents for the callback so expect did not load.
   EXPECT_EQ(Offliner::RequestStatus::PRERENDERING_FAILED,
             callback_load_status());
 
   // Stopped event causes no harm.
   test_adapter()->GetObserver()->OnPrerenderStop();
   PumpLoop();
 }
 
+TEST_F(PrerenderingLoaderTest, LoadPageLoadFailedUnsupportedScheme) {
+  test_adapter()->Configure(
+      nullptr /* web_contents */,
+      prerender::FinalStatus::FINAL_STATUS_UNSUPPORTED_SCHEME);
+  GURL gurl("http://testit.sea");
+  EXPECT_TRUE(loader()->IsIdle());
+  EXPECT_TRUE(loader()->LoadPage(
+      gurl,
+      base::Bind(&PrerenderingLoaderTest::OnLoadDone, base::Unretained(this))));
+  EXPECT_FALSE(loader()->IsIdle());
+  EXPECT_FALSE(loader()->IsLoaded());
+
+  test_adapter()->GetObserver()->OnPrerenderDomContentLoaded();
+  PumpLoop();
+  EXPECT_TRUE(loader()->IsIdle());
+  EXPECT_TRUE(callback_called());
+  // Unsupported Scheme final status currently considered a cancel rather
+  // than failure in case it is due to lost network connectivity.
+  EXPECT_EQ(Offliner::RequestStatus::PRERENDERING_CANCELED,
+            callback_load_status());
+
+  // Stopped event causes no harm.
+  test_adapter()->GetObserver()->OnPrerenderStop();
+  PumpLoop();
+}
+
 TEST_F(PrerenderingLoaderTest, LoadPageLoadCanceledFromStopLoading) {
   GURL gurl("http://testit.sea");
   EXPECT_TRUE(loader()->IsIdle());
   EXPECT_TRUE(loader()->LoadPage(
       gurl,
       base::Bind(&PrerenderingLoaderTest::OnLoadDone, base::Unretained(this))));
   EXPECT_FALSE(loader()->IsIdle());
   EXPECT_FALSE(loader()->IsLoaded());
 
   loader()->StopLoading();
@@ skipping 22 matching lines @@
   test_adapter()->Disable();
   GURL gurl("http://testit.sea");
   EXPECT_TRUE(loader()->IsIdle());
   EXPECT_FALSE(loader()->LoadPage(
       gurl,
       base::Bind(&PrerenderingLoaderTest::OnLoadDone, base::Unretained(this))));
   EXPECT_TRUE(loader()->IsIdle());
 }
 
 }  // namespace offline_pages