Cleanup namespace usage in Source/core/{dom/* & fileapi/*}

Source/core/dom/ViewportDescription.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2012-2013 Intel Corporation. All rights reserved.
  *
@@ skipping 205 matching lines @@
 
     if (!mainFrame || !mainFrame->host() || !mainFrame->view() || !mainFrame->document())
         return;
 
     // Avoid chrome:// pages like the new-tab page (on Android new tab is non-http).
     if (!mainFrame->document()->url().protocolIsInHTTPFamily())
         return;
 
     if (!isSpecifiedByAuthor()) {
         if (mainFrame->document()->isMobileDocument())
-            blink::Platform::current()->histogramEnumeration("Viewport.MetaTagType", XhtmlMobileProfile, TypeCount);
+            Platform::current()->histogramEnumeration("Viewport.MetaTagType", XhtmlMobileProfile, TypeCount);
         else
-            blink::Platform::current()->histogramEnumeration("Viewport.MetaTagType", NoViewportTag, TypeCount);
+            Platform::current()->histogramEnumeration("Viewport.MetaTagType", NoViewportTag, TypeCount);
 
         return;
     }
 
     if (isMetaViewportType()) {
         if (maxWidth.type() == blink::Fixed) {
-            blink::Platform::current()->histogramEnumeration("Viewport.MetaTagType", ConstantWidth, TypeCount);
+            Platform::current()->histogramEnumeration("Viewport.MetaTagType", ConstantWidth, TypeCount);
 
             if (mainFrame->view()) {
                 // To get an idea of how "far" the viewport is from the device's ideal width, we
                 // report the zoom level that we'd need to be at for the entire page to be visible.
                 int viewportWidth = maxWidth.intValue();
                 int windowWidth = mainFrame->document()->settings()->pinchVirtualViewportEnabled()
                     ? mainFrame->host()->pinchViewport().size().width()
                     : mainFrame->view()->frameRect().width();
                 int overviewZoomPercent = 100 * windowWidth / static_cast<float>(viewportWidth);
-                blink::Platform::current()->histogramSparse("Viewport.OverviewZoom", overviewZoomPercent);
+                Platform::current()->histogramSparse("Viewport.OverviewZoom", overviewZoomPercent);
             }
 
         } else if (maxWidth.type() == blink::DeviceWidth || maxWidth.type() == blink::ExtendToZoom) {
-            blink::Platform::current()->histogramEnumeration("Viewport.MetaTagType", DeviceWidth, TypeCount);
+            Platform::current()->histogramEnumeration("Viewport.MetaTagType", DeviceWidth, TypeCount);
         } else {
             // Overflow bucket for cases we may be unaware of.
-            blink::Platform::current()->histogramEnumeration("Viewport.MetaTagType", MetaWidthOther, TypeCount);
+            Platform::current()->histogramEnumeration("Viewport.MetaTagType", MetaWidthOther, TypeCount);
         }
     } else if (type == ViewportDescription::HandheldFriendlyMeta) {
-        blink::Platform::current()->histogramEnumeration("Viewport.MetaTagType", MetaHandheldFriendly, TypeCount);
+        Platform::current()->histogramEnumeration("Viewport.MetaTagType", MetaHandheldFriendly, TypeCount);
     } else if (type == ViewportDescription::MobileOptimizedMeta) {
-        blink::Platform::current()->histogramEnumeration("Viewport.MetaTagType", MobileOptimizedMeta, TypeCount);
+        Platform::current()->histogramEnumeration("Viewport.MetaTagType", MobileOptimizedMeta, TypeCount);
     }
 #endif
 }
 
 } // namespace blink