import changes from `dev' branch of rmottola/Arctic-Fox:

- Bug 1120957 - fix the source of searches made with paste & search, r=gijs,bwinton (da403a065)
- Goanna -> Gecko (e8a5d073c)
- Bug 1126057 - Provide better error when ./mach robocop is run without MOZ_HOST_BIN. r=nalexander (730edb656)
- Bug 1147307 - Use the target_out value for b2g mach mochitest. r=ahal (98dd31571)
- goanna -> gecko (4061244fd)
- Bug 1136700 - enable tweaking of the maximum number of timeouts for mochitests; r=jmaher (da0c9df86)
- goanna -> gecko (c7e86c998)
- Bug 1146234 - Allow non-object values to be used as the this value when invoking IDL callback functions. r=peterv (b00049033)
- Bug 1146333. Get rid of WrapCallThisValue and just use ToJSValue, now that we have it. r=peterv (095eb6d9d)
- whitespace fix (caf4808f0)
- Bug 1159401 - Split Blob and File classes, r=bz (700dbfd9b)

dom/base/ImageEncoder.cpp

@@ -90,8 +90,8 @@ public:
 
     if (!mFailed) {
       // The correct parentObject has to be set by the mEncodeCompleteCallback.
-      nsRefPtr<File> blob =
-        File::CreateMemoryFile(nullptr, mImgData, mImgSize, mType);
+      nsRefPtr<Blob> blob =
+        Blob::CreateMemoryBlob(nullptr, mImgData, mImgSize, mType);
       MOZ_ASSERT(blob);
 
       rv = mEncodeCompleteCallback->ReceiveBlob(blob.forget());