bug 424398. fix crash when installing new fonts while loading pages. r=vlad a=beltzner

gfx/thebes/public/gfxWindowsFonts.h

@@ -79,15 +79,15 @@ class FontEntry
 public:
     THEBES_INLINE_DECL_REFCOUNTING(FontEntry)
 
-    FontEntry(FontFamily *aFontFamily) : 
+    FontEntry(const nsString& aFaceName) : 
-        mFamily(aFontFamily), mUnicodeFont(PR_FALSE), mSymbolFont(PR_FALSE),
+        mFaceName(aFaceName), mUnicodeFont(PR_FALSE), mSymbolFont(PR_FALSE),
         mTrueType(PR_FALSE), mIsType1(PR_FALSE),
         mIsBadUnderlineFont(PR_FALSE), mForceGDI(PR_FALSE), mCharset(0), mUnicodeRanges(0)
     {
     }
 
     FontEntry(const FontEntry& aFontEntry) :
-        mFamily(aFontEntry.mFamily),
+        mFaceName(aFontEntry.mFaceName),
         mWindowsFamily(aFontEntry.mWindowsFamily),
         mWindowsPitch(aFontEntry.mWindowsPitch),
         mUnicodeFont(aFontEntry.mUnicodeFont),
@@ -104,7 +104,7 @@ public:
     }
 
     const nsString& GetName() const {
-        return mFamily->mName;
+        return mFaceName;
     }
 
     PRBool IsCrappyFont() const {
@@ -199,8 +199,7 @@ public:
     // whether this font family is in "bad" underline offset blacklist.
     PRBool IsBadUnderlineFont() { return mIsBadUnderlineFont != 0; }
 
-    /* needs to be a weak pointer to avoid a cycle */
+    nsString mFaceName;
-    FontFamily *mFamily;
 
     PRUint8 mWindowsFamily;
     PRUint8 mWindowsPitch;

gfx/thebes/src/gfxWindowsPlatform.cpp

@@ -137,7 +137,7 @@ gfxWindowsPlatform::FontEnumProc(const ENUMLOGFONTEXW *lpelfe,
         }
     }
 
-    fe = new FontEntry(ff);
+    fe = new FontEntry(ff->mName);
     /* don't append it until the end in case of error */
 
     fe->mItalic = (logFont.lfItalic == 0xFF);
@@ -363,6 +363,9 @@ BuildKeyNameFromFontName(nsAString &aName)
 nsresult
 gfxWindowsPlatform::UpdateFontList()
 {
+    gfxFontCache *fc = gfxFontCache::GetCache();
+    if (fc)
+        fc->AgeAllGenerations();
     mFonts.Clear();
     mFontAliases.Clear();
     mNonExistingFonts.Clear();
@@ -693,7 +696,7 @@ gfxWindowsPlatform::FindFontEntry(FontFamily *aFontFamily, const gfxFontStyle *a
     for (PRUint32 j = 0; j < 2; j++) {
         PRBool matchesSomething = PR_FALSE;
         // build up an array of weights that match the italicness we're looking for
-        for (PRInt32 i = 0; i < aFontFamily->mVariations.Length(); i++) {
+        for (PRUint32 i = 0; i < aFontFamily->mVariations.Length(); i++) {
             nsRefPtr<FontEntry> fe = aFontFamily->mVariations[i];
             const PRUint8 weight = (fe->mWeight / 100);
             if (fe->mItalic == italic) {