Bug 1408301: Remove getPropertyCSSValue. r=bz

It's been removed for a while on Nightly without any known regressions. This
gives us a full beta cycle of telemetry and two nightly cycles without the API
before shipping.

This only removes the API, followup work will replace serialization by Servo's,
and remove the remaining DOM interfaces.

MozReview-Commit-ID: 2m1taYg5xEr

dom/base/nsDeprecatedOperationList.h

@@ -46,4 +46,3 @@ DEPRECATED_OPERATION(OrientationEvent)
 DEPRECATED_OPERATION(ProximityEvent)
 DEPRECATED_OPERATION(AmbientLightEvent)
 DEPRECATED_OPERATION(IDBOpenDBOptions_StorageType)
-DEPRECATED_OPERATION(GetPropertyCSSValue)

dom/locales/en-US/chrome/dom/dom.properties

@@ -358,5 +358,3 @@ ProximityEventWarning=Use of the proximity sensor is deprecated.
 AmbientLightEventWarning=Use of the ambient light sensor is deprecated.
 # LOCALIZATION NOTE: Do not translate "storage", "indexedDB.open" and "navigator.storage.persist()".
 IDBOpenDBOptions_StorageTypeWarning=The ‘storage’ attribute in options passed to indexedDB.open is deprecated and will soon be removed. To get persistent storage, please use navigator.storage.persist() instead.
-# LOCALIZATION NOTE: Do not translate "getPropertyCSSValue" and "getPropertyValue".
-GetPropertyCSSValueWarning=Use of getPropertyCSSValue is deprecated, use getPropertyValue instead.

dom/webidl/CSSStyleDeclaration.webidl

@@ -19,9 +19,6 @@ interface CSSStyleDeclaration {
 
   [Throws]
   DOMString getPropertyValue(DOMString property);
-  // Mozilla extension, sort of
-  [Throws, Pref="layout.css.getPropertyCSSValue.enabled"]
-  CSSValue? getPropertyCSSValue(DOMString property);
   DOMString getPropertyPriority(DOMString property);
   [CEReactions, NeedsSubjectPrincipal=NonSystem, Throws]
   void setProperty(DOMString property, [TreatNullAs=EmptyString] DOMString value, [TreatNullAs=EmptyString] optional DOMString priority = "");

editor/libeditor/CSSEditUtils.cpp

@@ -641,10 +641,6 @@ CSSEditUtils::GetDefaultLengthUnit(nsAString& aLengthUnit)
   }
 }
 
-// Unfortunately, CSSStyleDeclaration::GetPropertyCSSValue is not yet
-// implemented... We need then a way to determine the number part and the unit
-// from aString, aString being the result of a GetPropertyValue query...
-
 // static
 void
 CSSEditUtils::ParseLength(const nsAString& aString,

editor/libeditor/CSSEditUtils.h

@@ -273,9 +273,7 @@ public:
                                           bool aSuppressTransaction);
 
   /**
-   * Parses a "xxxx.xxxxxuuu" string where x is a digit and u an alpha char
-   * we need such a parser because
-   * nsIDOMCSSStyleDeclaration::GetPropertyCSSValue() is not implemented.
+   * Parses a "xxxx.xxxxxuuu" string where x is a digit and u an alpha char.
    *
    * @param aString        [IN] Input string to parse.
    * @param aValue         [OUT] Numeric part.

editor/libeditor/ChangeStyleTransaction.cpp

@@ -183,10 +183,6 @@ ChangeStyleTransaction::DoTransaction()
     nsAutoString returnString;
     if (multiple) {
       // Let's remove only the value we have to remove and not the others
-
-      // The two lines below are a workaround because
-      // nsDOMCSSDeclaration::GetPropertyCSSValue is not yet implemented (bug
-      // 62682)
       RemoveValueFromListOfValues(values, NS_LITERAL_STRING("none"));
       RemoveValueFromListOfValues(values, mValue);
       if (values.IsEmpty()) {
@@ -207,10 +203,6 @@ ChangeStyleTransaction::DoTransaction()
     cssDecl->GetPropertyPriority(propertyNameString, priority);
     if (multiple) {
       // Let's add the value we have to add to the others
-
-      // The line below is a workaround because
-      // nsDOMCSSDeclaration::GetPropertyCSSValue is not yet implemented (bug
-      // 62682)
       AddValueToMultivalueProperty(values, mValue);
     } else {
       values.Assign(mValue);

layout/style/ServoFontFaceRule.cpp

@@ -66,15 +66,6 @@ ServoFontFaceRuleDecl::GetPropertyValue(const nsAString& aPropName,
   return NS_OK;
 }
 
-already_AddRefed<dom::CSSValue>
-ServoFontFaceRuleDecl::GetPropertyCSSValue(const nsAString& aPropName,
-                                           ErrorResult& aRv)
-{
-  // ??? nsDOMCSSDeclaration returns null/NS_OK, but that seems wrong.
-  aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
-  return nullptr;
-}
-
 NS_IMETHODIMP
 ServoFontFaceRuleDecl::RemoveProperty(const nsAString& aPropName,
                                       nsAString& aResult)

layout/style/ServoFontFaceRule.h

@@ -21,10 +21,6 @@ public:
   NS_DECL_ISUPPORTS_INHERITED
   NS_DECL_NSIDOMCSSSTYLEDECLARATION_HELPER
 
-  already_AddRefed<dom::CSSValue>
-  GetPropertyCSSValue(const nsAString& aProp, ErrorResult& aRv) final;
-  using nsICSSDeclaration::GetPropertyCSSValue;
-
   nsINode* GetParentObject() final;
   void IndexedGetter(uint32_t aIndex, bool& aFound, nsAString& aPropName) final;
 

layout/style/nsComputedDOMStyle.cpp

@@ -987,16 +987,6 @@ nsComputedDOMStyle::ClearCurrentStyleSources()
   mPresShell = nullptr;
 }
 
-already_AddRefed<CSSValue>
-nsComputedDOMStyle::GetPropertyCSSValue(const nsAString& aPropertyName,
-                                        ErrorResult& aRv)
-{
-  if (nsCOMPtr<nsIDocument> document = do_QueryReferent(mDocumentWeak)) {
-    document->WarnOnceAbout(nsIDocument::eGetPropertyCSSValue);
-  }
-  return GetPropertyCSSValueWithoutWarning(aPropertyName, aRv);
-}
-
 already_AddRefed<CSSValue>
 nsComputedDOMStyle::GetPropertyCSSValueWithoutWarning(
   const nsAString& aPropertyName,

layout/style/nsComputedDOMStyle.h

@@ -74,11 +74,6 @@ public:
                             const nsAString& aValue,
                             nsIPrincipal* aSubjectPrincipal) override;
 
-  // Do NOT use this, it is deprecated, see bug 474655.
-  already_AddRefed<CSSValue>
-  GetPropertyCSSValue(const nsAString& aProp, mozilla::ErrorResult& aRv) final;
-  using nsICSSDeclaration::GetPropertyCSSValue;
-
   void IndexedGetter(uint32_t aIndex, bool& aFound, nsAString& aPropName) final;
 
   enum StyleType {

layout/style/nsDOMCSSDeclaration.cpp

@@ -144,14 +144,6 @@ nsDOMCSSDeclaration::Length()
   return 0;
 }
 
-already_AddRefed<dom::CSSValue>
-nsDOMCSSDeclaration::GetPropertyCSSValue(const nsAString& aPropertyName, ErrorResult& aRv)
-{
-  // We don't support CSSValue yet so we'll just return null...
-
-  return nullptr;
-}
-
 void
 nsDOMCSSDeclaration::IndexedGetter(uint32_t aIndex, bool& aFound, nsAString& aPropName)
 {

layout/style/nsDOMCSSDeclaration.h

@@ -67,10 +67,6 @@ public:
                   mozilla::ErrorResult& aRv) override;
   NS_IMETHOD GetPropertyValue(const nsAString & propertyName,
                               nsAString & _retval) override;
-  virtual already_AddRefed<mozilla::dom::CSSValue>
-    GetPropertyCSSValue(const nsAString & propertyName,
-                        mozilla::ErrorResult& aRv) override;
-  using nsICSSDeclaration::GetPropertyCSSValue;
   NS_IMETHOD RemoveProperty(const nsAString & propertyName,
                             nsAString & _retval) override;
   void GetPropertyPriority(const nsAString & propertyName,

layout/style/nsICSSDeclaration.h

@@ -53,9 +53,6 @@ public:
 
   NS_IMETHOD GetPropertyValue(const nsAString& aPropName,
                               nsAString& aValue) = 0;
-  virtual already_AddRefed<mozilla::dom::CSSValue>
-    GetPropertyCSSValue(const nsAString& aPropertyName,
-                        mozilla::ErrorResult& aRv) = 0;
   NS_IMETHOD RemoveProperty(const nsAString& aPropertyName,
                             nsAString& aReturn) = 0;
   NS_IMETHOD SetProperty(const nsAString& aPropertyName,

layout/style/test/mochitest.ini

@@ -1,7 +1,6 @@
 [DEFAULT]
 prefs =
   dom.animations-api.core.enabled=true
-  layout.css.getPropertyCSSValue.enabled=true
 support-files =
   animation_utils.js
   ccd-quirks.html

modules/libpref/init/all.js

@@ -2827,12 +2827,6 @@ pref("layout.selection.caret_style", 0);
 // pref to report CSS errors to the error console
 pref("layout.css.report_errors", true);
 
-#ifdef NIGHTLY_BUILD
-pref("layout.css.getPropertyCSSValue.enabled", false);
-#else
-pref("layout.css.getPropertyCSSValue.enabled", true);
-#endif
-
 // Override DPI. A value of -1 means use the maximum of 96 and the system DPI.
 // A value of 0 means use the system DPI. A positive value is used as the DPI.
 // This sets the physical size of a device pixel and thus controls the