diff --git a/mozilla/content/html/style/src/nsIInspectorCSSUtils.h b/mozilla/content/html/style/src/nsIInspectorCSSUtils.h
index ced92b64dc9..878d5181b0d 100644
--- a/mozilla/content/html/style/src/nsIInspectorCSSUtils.h
+++ b/mozilla/content/html/style/src/nsIInspectorCSSUtils.h
@@ -81,6 +81,11 @@ public:
     // Hooks to methods that need layout atoms (static vars in layout)
     NS_IMETHOD GetStyleContextForFrame(nsIFrame* aFrame,
                                        nsIStyleContext** aStyleContext) = 0;
+
+    // Hooks to ::GetStyleData<T>(nsCOMPtr<nsIStyleContext>, const nsStyleText**)
+    // and calls nsStyleText->WhiteSpaceIsSignificant();
+    NS_IMETHOD IsWhiteSpaceSignificant(nsIStyleContext* aStyleContext,
+                                       PRBool *aIsSignificant) = 0;
 };
 
 #endif /* nsIInspectorCSSUtils_h___ */
diff --git a/mozilla/content/html/style/src/nsInspectorCSSUtils.cpp b/mozilla/content/html/style/src/nsInspectorCSSUtils.cpp
index 9a142a40ebb..5bd2c7002f7 100644
--- a/mozilla/content/html/style/src/nsInspectorCSSUtils.cpp
+++ b/mozilla/content/html/style/src/nsInspectorCSSUtils.cpp
@@ -142,3 +142,18 @@ nsInspectorCSSUtils::GetStyleContextForFrame(nsIFrame* aFrame,
     }
     return NS_OK;
 }    
+
+NS_IMETHODIMP
+nsInspectorCSSUtils::IsWhiteSpaceSignificant(nsIStyleContext* aStyleContext,
+                                             PRBool *aIsSignificant)
+{
+  NS_PRECONDITION(aStyleContext, "We'd better have a style context!");
+  NS_PRECONDITION(aStyleContext, "We'd better have an out pointer!");
+
+  const nsStyleText* text = nsnull;
+  ::GetStyleData(aStyleContext, &text);
+  NS_ASSERTION(text, "Could not get a style struct!");
+
+  *aIsSignificant = text->WhiteSpaceIsSignificant();
+  return NS_OK;
+}
diff --git a/mozilla/content/html/style/src/nsInspectorCSSUtils.h b/mozilla/content/html/style/src/nsInspectorCSSUtils.h
index cb1762cf618..cd62b5e09db 100644
--- a/mozilla/content/html/style/src/nsInspectorCSSUtils.h
+++ b/mozilla/content/html/style/src/nsInspectorCSSUtils.h
@@ -59,6 +59,8 @@ public:
     NS_IMETHOD AdjustRectForMargins(nsIFrame* aFrame, nsRect& aRect);
     NS_IMETHOD GetStyleContextForFrame(nsIFrame* aFrame,
                                        nsIStyleContext** aStyleContext);
+    NS_IMETHOD IsWhiteSpaceSignificant(nsIStyleContext* aStyleContext,
+                                       PRBool *aIsSignificant);
 };
 
 #endif /* nsInspectorCSSUtils_h___ */
diff --git a/mozilla/extensions/inspector/base/src/inDOMUtils.cpp b/mozilla/extensions/inspector/base/src/inDOMUtils.cpp
index d13d55520e0..a0f74f117bd 100644
--- a/mozilla/extensions/inspector/base/src/inDOMUtils.cpp
+++ b/mozilla/extensions/inspector/base/src/inDOMUtils.cpp
@@ -154,11 +154,10 @@ inDOMUtils::IsIgnorableWhitespace(nsIDOMCharacterData *aDataNode,
                             getter_AddRefs(styleContext));
 
   if (styleContext) {
-    const nsStyleText* text = nsnull;
-    ::GetStyleData(styleContext, &text);
-    NS_ASSERTION(text, "Could not get a style struct!");
+    PRBool significant = PR_FALSE;
+    mCSSUtils->IsWhiteSpaceSignificant(styleContext, &significant);
 
-    *aReturn = !text->WhiteSpaceIsSignificant();
+    *aReturn = !significant;
   }
   else {
     // No style context.  Let's just assume the default value of
diff --git a/mozilla/layout/style/nsIInspectorCSSUtils.h b/mozilla/layout/style/nsIInspectorCSSUtils.h
index ced92b64dc9..878d5181b0d 100644
--- a/mozilla/layout/style/nsIInspectorCSSUtils.h
+++ b/mozilla/layout/style/nsIInspectorCSSUtils.h
@@ -81,6 +81,11 @@ public:
     // Hooks to methods that need layout atoms (static vars in layout)
     NS_IMETHOD GetStyleContextForFrame(nsIFrame* aFrame,
                                        nsIStyleContext** aStyleContext) = 0;
+
+    // Hooks to ::GetStyleData<T>(nsCOMPtr<nsIStyleContext>, const nsStyleText**)
+    // and calls nsStyleText->WhiteSpaceIsSignificant();
+    NS_IMETHOD IsWhiteSpaceSignificant(nsIStyleContext* aStyleContext,
+                                       PRBool *aIsSignificant) = 0;
 };
 
 #endif /* nsIInspectorCSSUtils_h___ */
diff --git a/mozilla/layout/style/nsInspectorCSSUtils.cpp b/mozilla/layout/style/nsInspectorCSSUtils.cpp
index 9a142a40ebb..5bd2c7002f7 100644
--- a/mozilla/layout/style/nsInspectorCSSUtils.cpp
+++ b/mozilla/layout/style/nsInspectorCSSUtils.cpp
@@ -142,3 +142,18 @@ nsInspectorCSSUtils::GetStyleContextForFrame(nsIFrame* aFrame,
     }
     return NS_OK;
 }    
+
+NS_IMETHODIMP
+nsInspectorCSSUtils::IsWhiteSpaceSignificant(nsIStyleContext* aStyleContext,
+                                             PRBool *aIsSignificant)
+{
+  NS_PRECONDITION(aStyleContext, "We'd better have a style context!");
+  NS_PRECONDITION(aStyleContext, "We'd better have an out pointer!");
+
+  const nsStyleText* text = nsnull;
+  ::GetStyleData(aStyleContext, &text);
+  NS_ASSERTION(text, "Could not get a style struct!");
+
+  *aIsSignificant = text->WhiteSpaceIsSignificant();
+  return NS_OK;
+}
diff --git a/mozilla/layout/style/nsInspectorCSSUtils.h b/mozilla/layout/style/nsInspectorCSSUtils.h
index cb1762cf618..cd62b5e09db 100644
--- a/mozilla/layout/style/nsInspectorCSSUtils.h
+++ b/mozilla/layout/style/nsInspectorCSSUtils.h
@@ -59,6 +59,8 @@ public:
     NS_IMETHOD AdjustRectForMargins(nsIFrame* aFrame, nsRect& aRect);
     NS_IMETHOD GetStyleContextForFrame(nsIFrame* aFrame,
                                        nsIStyleContext** aStyleContext);
+    NS_IMETHOD IsWhiteSpaceSignificant(nsIStyleContext* aStyleContext,
+                                       PRBool *aIsSignificant);
 };
 
 #endif /* nsInspectorCSSUtils_h___ */