Add support for media attribute on link

third_party/WebKit/Source/core/loader/LinkLoaderTest.cpp

 // Copyright 2015 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 "core/loader/LinkLoader.h"
 
 #include "core/fetch/MemoryCache.h"
 #include "core/fetch/ResourceFetcher.h"
 #include "core/frame/Settings.h"
 #include "core/html/LinkRelAttribute.h"
@@ skipping 70 matching lines @@
     mutable bool m_isCrossOrigin;
 
 };
 
 TEST(LinkLoaderTest, Preload)
 {
     struct TestCase {
         const char* href;
         const char* as;
         const char* type;
+        const char* media;
         const ResourceLoadPriority priority;
         const WebURLRequest::RequestContext context;
         const bool linkLoaderShouldLoadValue;
         const bool expectingLoad;
         const char* accept;
     } cases[] = {
-        {"data://example.test/cat.jpg", "image", "", ResourceLoadPriorityVeryLow, WebURLRequest::RequestContextImage, true, true, "image/webp,image/*,*/*;q=0.8"},
-        {"data://example.test/cat.js", "script", "", ResourceLoadPriorityMedium, WebURLRequest::RequestContextScript, true, true, "*/*"},
-        {"data://example.test/cat.css", "style", "", ResourceLoadPriorityHigh, WebURLRequest::RequestContextStyle, true, true, "text/css,*/*;q=0.1"},
+        {"data://example.test/cat.jpg", "image", "", "", ResourceLoadPriorityVeryLow, WebURLRequest::RequestContextImage, true, true, "image/webp,image/*,*/*;q=0.8"},
+        {"data://example.test/cat.js", "script", "", "", ResourceLoadPriorityMedium, WebURLRequest::RequestContextScript, true, true, "*/*"},
+        {"data://example.test/cat.css", "style", "", "", ResourceLoadPriorityHigh, WebURLRequest::RequestContextStyle, true, true, "text/css,*/*;q=0.1"},
         // TODO(yoav): It doesn't seem like the audio context is ever used. That should probably be fixed (or we can consolidate audio and video).
-        {"data://example.test/cat.wav", "audio", "", ResourceLoadPriorityLow, WebURLRequest::RequestContextVideo, true, true, ""},
-        {"data://example.test/cat.mp4", "video", "", ResourceLoadPriorityLow, WebURLRequest::RequestContextVideo, true, true, ""},
-        {"data://example.test/cat.vtt", "track", "", ResourceLoadPriorityLow, WebURLRequest::RequestContextTrack, true, true, ""},
-        {"data://example.test/cat.woff", "font", "", ResourceLoadPriorityMedium, WebURLRequest::RequestContextFont, true, true, ""},
+        {"data://example.test/cat.wav", "audio", "", "", ResourceLoadPriorityLow, WebURLRequest::RequestContextVideo, true, true, ""},
+        {"data://example.test/cat.mp4", "video", "", "", ResourceLoadPriorityLow, WebURLRequest::RequestContextVideo, true, true, ""},
+        {"data://example.test/cat.vtt", "track", "", "", ResourceLoadPriorityLow, WebURLRequest::RequestContextTrack, true, true, ""},
+        {"data://example.test/cat.woff", "font", "", "", ResourceLoadPriorityMedium, WebURLRequest::RequestContextFont, true, true, ""},
         // TODO(yoav): subresource should be *very* low priority (rather than low).
-        {"data://example.test/cat.empty", "", "", ResourceLoadPriorityLow, WebURLRequest::RequestContextSubresource, true, true, ""},
-        {"data://example.test/cat.blob", "blabla", "", ResourceLoadPriorityLow, WebURLRequest::RequestContextSubresource, false, false, ""},
-        {"bla://example.test/cat.gif", "image", "", ResourceLoadPriorityUnresolved, WebURLRequest::RequestContextImage, false, false, ""},
+        {"data://example.test/cat.empty", "", "", "", ResourceLoadPriorityLow, WebURLRequest::RequestContextSubresource, true, true, ""},
+        {"data://example.test/cat.blob", "blabla", "", "", ResourceLoadPriorityLow, WebURLRequest::RequestContextSubresource, false, false, ""},
+        {"bla://example.test/cat.gif", "image", "", "", ResourceLoadPriorityUnresolved, WebURLRequest::RequestContextImage, false, false, ""},
         // MIME type tests
-        {"data://example.test/cat.webp", "image", "image/webp", ResourceLoadPriorityVeryLow, WebURLRequest::RequestContextImage, true, true, "image/webp,image/*,*/*;q=0.8"},
-        {"data://example.test/cat.svg", "image", "image/svg+xml", ResourceLoadPriorityVeryLow, WebURLRequest::RequestContextImage, true, true, "image/webp,image/*,*/*;q=0.8"},
-        {"data://example.test/cat.jxr", "image", "image/jxr", ResourceLoadPriorityUnresolved, WebURLRequest::RequestContextImage, false, false, ""},
-        {"data://example.test/cat.js", "script", "text/javascript", ResourceLoadPriorityMedium, WebURLRequest::RequestContextScript, true, true, "*/*"},
-        {"data://example.test/cat.js", "script", "text/coffeescript", ResourceLoadPriorityUnresolved, WebURLRequest::RequestContextScript, false, false, ""},
-        {"data://example.test/cat.css", "style", "text/css", ResourceLoadPriorityHigh, WebURLRequest::RequestContextStyle, true, true, "text/css,*/*;q=0.1"},
-        {"data://example.test/cat.css", "style", "text/sass", ResourceLoadPriorityUnresolved, WebURLRequest::RequestContextStyle, false, false, ""},
-        {"data://example.test/cat.wav", "audio", "audio/wav", ResourceLoadPriorityLow, WebURLRequest::RequestContextVideo, true, true, ""},
-        {"data://example.test/cat.wav", "audio", "audio/mp57", ResourceLoadPriorityUnresolved, WebURLRequest::RequestContextVideo, false, false, ""},
-        {"data://example.test/cat.webm", "video", "video/webm", ResourceLoadPriorityLow, WebURLRequest::RequestContextVideo, true, true, ""},
-        {"data://example.test/cat.mp199", "video", "video/mp199", ResourceLoadPriorityUnresolved, WebURLRequest::RequestContextVideo, false, false, ""},
-        {"data://example.test/cat.vtt", "track", "text/vtt", ResourceLoadPriorityLow, WebURLRequest::RequestContextTrack, true, true, ""},
-        {"data://example.test/cat.vtt", "track", "text/subtitlething", ResourceLoadPriorityUnresolved, WebURLRequest::RequestContextTrack, false, false, ""},
-        {"data://example.test/cat.woff", "font", "font/woff2", ResourceLoadPriorityMedium, WebURLRequest::RequestContextFont, true, true, ""},
-        {"data://example.test/cat.woff", "font", "font/woff84", ResourceLoadPriorityUnresolved, WebURLRequest::RequestContextFont, false, false, ""},
-        {"data://example.test/cat.empty", "", "foo/bar", ResourceLoadPriorityLow, WebURLRequest::RequestContextSubresource, true, true, ""},
-        {"data://example.test/cat.blob", "blabla", "foo/bar", ResourceLoadPriorityLow, WebURLRequest::RequestContextSubresource, false, false, ""},
+        {"data://example.test/cat.webp", "image", "image/webp", "", ResourceLoadPriorityVeryLow, WebURLRequest::RequestContextImage, true, true, "image/webp,image/*,*/*;q=0.8"},
+        {"data://example.test/cat.svg", "image", "image/svg+xml", "", ResourceLoadPriorityVeryLow, WebURLRequest::RequestContextImage, true, true, "image/webp,image/*,*/*;q=0.8"},
+        {"data://example.test/cat.jxr", "image", "image/jxr", "", ResourceLoadPriorityUnresolved, WebURLRequest::RequestContextImage, false, false, ""},
+        {"data://example.test/cat.js", "script", "text/javascript", "", ResourceLoadPriorityMedium, WebURLRequest::RequestContextScript, true, true, "*/*"},
+        {"data://example.test/cat.js", "script", "text/coffeescript", "", ResourceLoadPriorityUnresolved, WebURLRequest::RequestContextScript, false, false, ""},
+        {"data://example.test/cat.css", "style", "text/css", "", ResourceLoadPriorityHigh, WebURLRequest::RequestContextStyle, true, true, "text/css,*/*;q=0.1"},
+        {"data://example.test/cat.css", "style", "text/sass", "", ResourceLoadPriorityUnresolved, WebURLRequest::RequestContextStyle, false, false, ""},
+        {"data://example.test/cat.wav", "audio", "audio/wav", "", ResourceLoadPriorityLow, WebURLRequest::RequestContextVideo, true, true, ""},
+        {"data://example.test/cat.wav", "audio", "audio/mp57", "", ResourceLoadPriorityUnresolved, WebURLRequest::RequestContextVideo, false, false, ""},
+        {"data://example.test/cat.webm", "video", "video/webm", "", ResourceLoadPriorityLow, WebURLRequest::RequestContextVideo, true, true, ""},
+        {"data://example.test/cat.mp199", "video", "video/mp199", "", ResourceLoadPriorityUnresolved, WebURLRequest::RequestContextVideo, false, false, ""},
+        {"data://example.test/cat.vtt", "track", "text/vtt", "", ResourceLoadPriorityLow, WebURLRequest::RequestContextTrack, true, true, ""},
+        {"data://example.test/cat.vtt", "track", "text/subtitlething", "", ResourceLoadPriorityUnresolved, WebURLRequest::RequestContextTrack, false, false, ""},
+        {"data://example.test/cat.woff", "font", "font/woff2", "", ResourceLoadPriorityMedium, WebURLRequest::RequestContextFont, true, true, ""},
+        {"data://example.test/cat.woff", "font", "font/woff84", "", ResourceLoadPriorityUnresolved, WebURLRequest::RequestContextFont, false, false, ""},
+        {"data://example.test/cat.empty", "", "foo/bar", "", ResourceLoadPriorityLow, WebURLRequest::RequestContextSubresource, true, true, ""},
+        {"data://example.test/cat.blob", "blabla", "foo/bar", "", ResourceLoadPriorityLow, WebURLRequest::RequestContextSubresource, false, false, ""},
+        // Media tests
+        {"data://example.test/cat.gif", "image", "", "(max-width: 600px)", ResourceLoadPriorityVeryLow, WebURLRequest::RequestContextImage, true, true, "image/webp,image/*,*/*;q=0.8"},
+        {"data://example.test/cat.gif", "image", "", "(max-width: 400px)", ResourceLoadPriorityUnresolved, WebURLRequest::RequestContextImage, true, false, ""},
+        {"data://example.test/cat.gif", "image", "", "(max-width: 600px)", ResourceLoadPriorityVeryLow, WebURLRequest::RequestContextImage, false, false, "image/webp,image/*,*/*;q=0.8"},
     };
 
     // Test the cases with a single header
     for (const auto& testCase : cases) {
         OwnPtr<DummyPageHolder> dummyPageHolder = DummyPageHolder::create(IntSize(500, 500));
         dummyPageHolder->frame().settings()->setScriptEnabled(true);
         OwnPtrWillBePersistent<MockLinkLoaderClient> loaderClient = MockLinkLoaderClient::create(testCase.linkLoaderShouldLoadValue);
         OwnPtrWillBeRawPtr<LinkLoader> loader = LinkLoader::create(loaderClient.get());
         KURL hrefURL = KURL(KURL(), testCase.href);
         loader->loadLink(LinkRelAttribute("preload"),
             CrossOriginAttributeNotSet,
             testCase.type,
             testCase.as,
+            testCase.media,
             hrefURL,
             dummyPageHolder->document(),
             NetworkHintsMock());
         ASSERT(dummyPageHolder->document().fetcher());
         WillBeHeapListHashSet<RefPtrWillBeMember<Resource>>* preloads = dummyPageHolder->document().fetcher()->preloads();
         if (testCase.expectingLoad) {
             if (!preloads)
                 fprintf(stderr, "Unexpected result %s %s %s\n", testCase.href, testCase.as, testCase.type);
             ASSERT_NE(nullptr, preloads);
         } else {
@@ skipping 35 matching lines @@
         OwnPtr<DummyPageHolder> dummyPageHolder = DummyPageHolder::create(IntSize(500, 500));
         dummyPageHolder->document().settings()->setDNSPrefetchingEnabled(true);
         OwnPtrWillBePersistent<MockLinkLoaderClient> loaderClient = MockLinkLoaderClient::create(testCase.shouldLoad);
         OwnPtrWillBeRawPtr<LinkLoader> loader = LinkLoader::create(loaderClient.get());
         KURL hrefURL = KURL(KURL(ParsedURLStringTag(), String("http://example.com")), testCase.href);
         NetworkHintsMock networkHints;
         loader->loadLink(LinkRelAttribute("dns-prefetch"),
             CrossOriginAttributeNotSet,
             String(),
             String(),
+            String(),
             hrefURL,
             dummyPageHolder->document(),
             networkHints);
         ASSERT_FALSE(networkHints.didPreconnect());
         ASSERT_EQ(testCase.shouldLoad, networkHints.didDnsPrefetch());
     }
 }
 
 TEST(LinkLoaderTest, Preconnect)
 {
@@ skipping 14 matching lines @@
     for (const auto& testCase : cases) {
         OwnPtr<DummyPageHolder> dummyPageHolder = DummyPageHolder::create(IntSize(500, 500));
         OwnPtrWillBePersistent<MockLinkLoaderClient> loaderClient = MockLinkLoaderClient::create(testCase.shouldLoad);
         OwnPtrWillBeRawPtr<LinkLoader> loader = LinkLoader::create(loaderClient.get());
         KURL hrefURL = KURL(KURL(ParsedURLStringTag(), String("http://example.com")), testCase.href);
         NetworkHintsMock networkHints;
         loader->loadLink(LinkRelAttribute("preconnect"),
             testCase.crossOrigin,
             String(),
             String(),
+            String(),
             hrefURL,
             dummyPageHolder->document(),
             networkHints);
         ASSERT_EQ(testCase.shouldLoad, networkHints.didPreconnect());
         ASSERT_EQ(testCase.isHTTPS, networkHints.isHTTPS());
         ASSERT_EQ(testCase.isCrossOrigin, networkHints.isCrossOrigin());
     }
 }
 
 } // namespace blink