Optimizing variable use by reducing scope

Source/core/loader/appcache/ApplicationCache.cpp

Index: Source/core/loader/appcache/ApplicationCache.cpp
diff --git a/Source/core/loader/appcache/ApplicationCache.cpp b/Source/core/loader/appcache/ApplicationCache.cpp
index 7868951644c27dd8f177a89708aa28391cbee2e3..356be1dbb71754fe897d46bad69ec85c4f560634 100644
--- a/Source/core/loader/appcache/ApplicationCache.cpp
+++ b/Source/core/loader/appcache/ApplicationCache.cpp
@@ -39,8 +39,7 @@ namespace blink {
 ApplicationCache::ApplicationCache(LocalFrame* frame)
     : DOMWindowProperty(frame)
 {
-    ApplicationCacheHost* cacheHost = applicationCacheHost();
-    if (cacheHost)
+    if (ApplicationCacheHost* cacheHost = applicationCacheHost())
         cacheHost->setApplicationCache(this);
 }
 
@@ -66,10 +65,9 @@ ApplicationCacheHost* ApplicationCache::applicationCacheHost() const
 
 unsigned short ApplicationCache::status() const
 {
-    ApplicationCacheHost* cacheHost = applicationCacheHost();
-    if (!cacheHost)
-        return ApplicationCacheHost::UNCACHED;
-    return cacheHost->status();
+    if (ApplicationCacheHost* cacheHost = applicationCacheHost())
+        return cacheHost->status();
+    return ApplicationCacheHost::UNCACHED;
 }
 
 void ApplicationCache::update(ExceptionState& exceptionState)
@@ -88,8 +86,7 @@ void ApplicationCache::swapCache(ExceptionState& exceptionState)
 
 void ApplicationCache::abort()
 {
-    ApplicationCacheHost* cacheHost = applicationCacheHost();
-    if (cacheHost)
+    if (ApplicationCacheHost* cacheHost = applicationCacheHost())
         cacheHost->abort();
 }