Add m-esr52 at 52.6.0

1 files changed, 88 insertions, 0 deletions

diff --git a/parser/html/nsHtml5SpeculativeLoad.cpp b/parser/html/nsHtml5SpeculativeLoad.cpp
new file mode 100644
index 0000000000..8ffc4d063a
--- /dev/null
+++ b/parser/html/nsHtml5SpeculativeLoad.cpp
@@ -0,0 +1,88 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsHtml5SpeculativeLoad.h"
+#include "nsHtml5TreeOpExecutor.h"
+
+nsHtml5SpeculativeLoad::nsHtml5SpeculativeLoad()
+#ifdef DEBUG
+ : mOpCode(eSpeculativeLoadUninitialized)
+#endif
+{
+  MOZ_COUNT_CTOR(nsHtml5SpeculativeLoad);
+}
+
+nsHtml5SpeculativeLoad::~nsHtml5SpeculativeLoad()
+{
+  MOZ_COUNT_DTOR(nsHtml5SpeculativeLoad);
+  NS_ASSERTION(mOpCode != eSpeculativeLoadUninitialized,
+               "Uninitialized speculative load.");
+}
+
+void
+nsHtml5SpeculativeLoad::Perform(nsHtml5TreeOpExecutor* aExecutor)
+{
+  switch (mOpCode) {
+    case eSpeculativeLoadBase:
+      aExecutor->SetSpeculationBase(mUrl);
+      break;
+    case eSpeculativeLoadCSP:
+      aExecutor->AddSpeculationCSP(mMetaCSP);
+      break;
+    case eSpeculativeLoadMetaReferrer:
+      aExecutor->SetSpeculationReferrerPolicy(mReferrerPolicy);
+      break;
+    case eSpeculativeLoadImage:
+      aExecutor->PreloadImage(mUrl, mCrossOrigin, mSrcset, mSizes, mReferrerPolicy);
+      break;
+    case eSpeculativeLoadOpenPicture:
+      aExecutor->PreloadOpenPicture();
+      break;
+    case eSpeculativeLoadEndPicture:
+      aExecutor->PreloadEndPicture();
+      break;
+    case eSpeculativeLoadPictureSource:
+      aExecutor->PreloadPictureSource(mSrcset, mSizes, mTypeOrCharsetSourceOrDocumentMode,
+                                      mMedia);
+      break;
+    case eSpeculativeLoadScript:
+      aExecutor->PreloadScript(mUrl, mCharset, mTypeOrCharsetSourceOrDocumentMode,
+                               mCrossOrigin, mIntegrity, false);
+      break;
+    case eSpeculativeLoadScriptFromHead:
+      aExecutor->PreloadScript(mUrl, mCharset, mTypeOrCharsetSourceOrDocumentMode,
+                               mCrossOrigin, mIntegrity, true);
+      break;
+    case eSpeculativeLoadStyle:
+      aExecutor->PreloadStyle(mUrl, mCharset, mCrossOrigin, mIntegrity);
+      break;
+    case eSpeculativeLoadManifest:  
+      aExecutor->ProcessOfflineManifest(mUrl);
+      break;
+    case eSpeculativeLoadSetDocumentCharset: {
+        nsAutoCString narrowName;
+        CopyUTF16toUTF8(mCharset, narrowName);
+        NS_ASSERTION(mTypeOrCharsetSourceOrDocumentMode.Length() == 1,
+            "Unexpected charset source string");
+        int32_t intSource = (int32_t)mTypeOrCharsetSourceOrDocumentMode.First();
+        aExecutor->SetDocumentCharsetAndSource(narrowName,
+                                               intSource);
+      }
+      break;
+    case eSpeculativeLoadSetDocumentMode: {
+        NS_ASSERTION(mTypeOrCharsetSourceOrDocumentMode.Length() == 1,
+            "Unexpected document mode string");
+        nsHtml5DocumentMode mode =
+            (nsHtml5DocumentMode)mTypeOrCharsetSourceOrDocumentMode.First();
+        aExecutor->SetDocumentMode(mode);
+      }
+      break;
+    case eSpeculativeLoadPreconnect:
+      aExecutor->Preconnect(mUrl, mCrossOrigin);
+      break;
+    default:
+      NS_NOTREACHED("Bogus speculative load.");
+      break;
+  }
+}