Bug 633305 - about:memory should display memory reporters that live in the child process r=cjones a=blocking-fennec

xpcom/base/nsMemoryReporterManager.cpp

@@ -288,6 +288,45 @@ nsMemoryReporterManager::UnregisterReporter(nsIMemoryReporter *reporter)
     return NS_OK;
 }
 
+NS_IMPL_ISUPPORTS1(nsMemoryReporter, nsIMemoryReporter)
+
+nsMemoryReporter::nsMemoryReporter(nsCString& prefix,
+                                   nsCString& path,
+                                   nsCString& desc,
+                                   PRInt64 memoryUsed)
+: mDesc(desc)
+, mMemoryUsed(memoryUsed) 
+{
+  if (!prefix.IsEmpty()) {
+    mPath.Append(prefix);
+    mPath.Append(NS_LITERAL_CSTRING(" - "));
+  }
+  mPath.Append(path);
+}
+
+nsMemoryReporter::~nsMemoryReporter()
+{
+}
+
+NS_IMETHODIMP nsMemoryReporter::GetPath(char **aPath)
+{
+  *aPath = strdup(mPath.get());
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsMemoryReporter::GetDescription(char **aDescription)
+{
+  *aDescription = strdup(mDesc.get());
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsMemoryReporter::GetMemoryUsed(PRInt64 *aMemoryUsed)
+{
+  *aMemoryUsed = mMemoryUsed;
+  return NS_OK;
+}
+
+
 NS_COM nsresult
 NS_RegisterMemoryReporter (nsIMemoryReporter *reporter)
 {