Partial implementation of inline StylePropertyMap.

third_party/WebKit/Source/core/dom/Element.cpp

Index: third_party/WebKit/Source/core/dom/Element.cpp
diff --git a/third_party/WebKit/Source/core/dom/Element.cpp b/third_party/WebKit/Source/core/dom/Element.cpp
index 960c8a3a28a5fbb1221c8bacf4be72b22c6b0fcc..42c912f2bf0466bf8ec15e4d1c25448ea61055f0 100644
--- a/third_party/WebKit/Source/core/dom/Element.cpp
+++ b/third_party/WebKit/Source/core/dom/Element.cpp
@@ -3419,6 +3419,13 @@ CSSStyleDeclaration* Element::style()
     return &ensureElementRareData().ensureInlineCSSStyleDeclaration(this);
 }
 
+StylePropertyMap* Element::styleMap()
+{
+    if (!isStyledElement())
+        return nullptr;
+    return &ensureElementRareData().ensureInlineStylePropertyMap(this);
+}
+
 MutableStylePropertySet& Element::ensureMutableInlineStyle()
 {
     ASSERT(isStyledElement());
@@ -3514,6 +3521,14 @@ bool Element::setInlineStyleProperty(CSSPropertyID propertyID, const String& val
     return changes;
 }
 
+bool Element::setInlineStyleProperty(CSSPropertyID propertyID, const PassRefPtrWillBeRawPtr<CSSValue> value, bool important)

[Timothy Loh, 2016/03/23 03:45:09]

To save some copy paste and make this patch a little bit smaller, can we make a
separate change for this:

- Add this function (void return is probably sufficient?)
- Call this function from the two above functions (the non-string ones) and
change those to void return type.

[meade_UTC10, 2016/03/29 06:27:37]

Done.

+{
+    ASSERT(isStyledElement());
+    ensureMutableInlineStyle().setProperty(propertyID, value);

[Timothy Loh, 2016/03/23 03:45:09]

Missing important argument

[meade_UTC10, 2016/03/29 06:27:37]

Done.

+    inlineStyleChanged();
+    return true;
+}
+
 bool Element::removeInlineStyleProperty(CSSPropertyID propertyID)
 {
     ASSERT(isStyledElement());
@@ -3543,6 +3558,20 @@ void Element::updatePresentationAttributeStyle()
     elementData.m_presentationAttributeStyle = computePresentationAttributeStyle(*this);
 }
 
+void Element::invalidateInlineStylePropertyMap()
+{
+    if (!hasRareData())
+        return;
+    ElementRareData* rareData = elementRareData();
+    InlineStylePropertyMap* inlineStylePropertyMap = rareData->inlineStylePropertyMap();
+    if (!inlineStylePropertyMap) {
+        // If it doesn't exist, it isn't being used, so nothing to do.
+        return;
+    }
+
+    inlineStylePropertyMap->invalidate();
+}
+
 void Element::addPropertyToPresentationAttributeStyle(MutableStylePropertySet* style, CSSPropertyID propertyID, CSSValueID identifier)
 {
     ASSERT(isStyledElement());