Rename/tweak some StylePropertySet/CSSStyleDeclaration copying functions.
<http://webkit.org/b/114569>

Reviewed by Anders Carlsson.

- StylePropertySet::copy() -> mutableCopy()

    This function now returns a MutableStylePropertySet, and this is also reflected in the name.

- CSSStyleDeclaration::copy() -> copyProperties()

    Renamed to reflect that it's the properties being copied, not the CSSStyleDeclaration.
    They also now return MutableStylePropertySets.

- StylePropertySet::copyPropertiesInSet()
- CSSStyleDeclaration::copyPropertiesInSet()

    These functions now return MutableStylePropertySets.

* css/CSSComputedStyleDeclaration.cpp:
(WebCore::CSSComputedStyleDeclaration::copyProperties):
(WebCore::CSSComputedStyleDeclaration::copyPropertiesInSet):
* css/CSSComputedStyleDeclaration.h:
(CSSComputedStyleDeclaration):
* css/CSSStyleDeclaration.h:
(CSSStyleDeclaration):
* css/PropertySetCSSStyleDeclaration.cpp:
(WebCore::PropertySetCSSStyleDeclaration::copyProperties):
* css/PropertySetCSSStyleDeclaration.h:
* css/StylePropertySet.cpp:
(WebCore::StylePropertySet::mutableCopy):
(WebCore::StylePropertySet::copyPropertiesInSet):
* css/StylePropertySet.h:
(StylePropertySet):
* css/StyleRule.cpp:
(WebCore::StyleRule::StyleRule):
(WebCore::StyleRule::mutableProperties):
(WebCore::StyleRulePage::StyleRulePage):
(WebCore::StyleRulePage::mutableProperties):
(WebCore::StyleRuleFontFace::StyleRuleFontFace):
(WebCore::StyleRuleFontFace::mutableProperties):
(WebCore::StyleRuleViewport::StyleRuleViewport):
(WebCore::StyleRuleViewport::mutableProperties):
(WebCore::StyleRuleFilter::StyleRuleFilter):
(WebCore::StyleRuleFilter::mutableProperties):
* css/ViewportStyleResolver.cpp:
(WebCore::ViewportStyleResolver::addViewportRule):
* css/WebKitCSSKeyframeRule.cpp:
(WebCore::StyleKeyframe::mutableProperties):
* dom/Element.cpp:
(WebCore::UniqueElementData::UniqueElementData):
* dom/StyledElement.cpp:
(WebCore::StyledElement::ensureMutableInlineStyle):
* editing/ApplyStyleCommand.cpp:
(WebCore::copyStyleOrCreateEmpty):
* editing/EditingStyle.cpp:
(WebCore::copyEditingProperties):
(WebCore::editingStyleFromComputedStyle):
(WebCore::EditingStyle::EditingStyle):
(WebCore::EditingStyle::init):
(WebCore::EditingStyle::copy):
(WebCore::EditingStyle::mergeStyle):
(WebCore::getPropertiesNotIn):
* editing/FrameSelection.cpp:
(WebCore::FrameSelection::copyTypingStyle):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@148365 268f45cc-cd09-0410-ab3c-d52691b4dbfc
diff --git a/Source/WebCore/css/StyleRule.cpp b/Source/WebCore/css/StyleRule.cpp
index e0046c1..0af0999 100644
--- a/Source/WebCore/css/StyleRule.cpp
+++ b/Source/WebCore/css/StyleRule.cpp
@@ -304,7 +304,7 @@
 
 StyleRule::StyleRule(const StyleRule& o)
     : StyleRuleBase(o)
-    , m_properties(o.m_properties->copy())
+    , m_properties(o.m_properties->mutableCopy())
     , m_selectorList(o.m_selectorList)
 {
 }
@@ -316,7 +316,7 @@
 StylePropertySet* StyleRule::mutableProperties()
 {
     if (!m_properties->isMutable())
-        m_properties = m_properties->copy();
+        m_properties = m_properties->mutableCopy();
     return m_properties.get();
 }
 
@@ -332,7 +332,7 @@
 
 StyleRulePage::StyleRulePage(const StyleRulePage& o)
     : StyleRuleBase(o)
-    , m_properties(o.m_properties->copy())
+    , m_properties(o.m_properties->mutableCopy())
     , m_selectorList(o.m_selectorList)
 {
 }
@@ -344,7 +344,7 @@
 StylePropertySet* StyleRulePage::mutableProperties()
 {
     if (!m_properties->isMutable())
-        m_properties = m_properties->copy();
+        m_properties = m_properties->mutableCopy();
     return m_properties.get();
 }
 
@@ -367,7 +367,7 @@
 
 StyleRuleFontFace::StyleRuleFontFace(const StyleRuleFontFace& o)
     : StyleRuleBase(o)
-    , m_properties(o.m_properties->copy())
+    , m_properties(o.m_properties->mutableCopy())
 {
 }
 
@@ -378,7 +378,7 @@
 StylePropertySet* StyleRuleFontFace::mutableProperties()
 {
     if (!m_properties->isMutable())
-        m_properties = m_properties->copy();
+        m_properties = m_properties->mutableCopy();
     return m_properties.get();
 }
 
@@ -486,7 +486,7 @@
 
 StyleRuleViewport::StyleRuleViewport(const StyleRuleViewport& o)
     : StyleRuleBase(o)
-    , m_properties(o.m_properties->copy())
+    , m_properties(o.m_properties->mutableCopy())
 {
 }
 
@@ -497,7 +497,7 @@
 StylePropertySet* StyleRuleViewport::mutableProperties()
 {
     if (!m_properties->isMutable())
-        m_properties = m_properties->copy();
+        m_properties = m_properties->mutableCopy();
     return m_properties.get();
 }
 
@@ -523,7 +523,7 @@
 StyleRuleFilter::StyleRuleFilter(const StyleRuleFilter& o)
     : StyleRuleBase(o)
     , m_filterName(o.m_filterName)
-    , m_properties(o.m_properties->copy())
+    , m_properties(o.m_properties->mutableCopy())
 {
 }
 
@@ -534,7 +534,7 @@
 StylePropertySet* StyleRuleFilter::mutableProperties()
 {
     if (!m_properties->isMutable())
-        m_properties = m_properties->copy();
+        m_properties = m_properties->mutableCopy();
     return m_properties.get();
 }