Run clang-modernize -use-nullptr over src/extensions/.

extensions/browser/extension_icon_image.cc

Index: extensions/browser/extension_icon_image.cc
diff --git a/extensions/browser/extension_icon_image.cc b/extensions/browser/extension_icon_image.cc
index 14ba2904016edd51281a38affe55faf01dddbd71..4518cd330738c58465caa7987b6229ba33d00225 100644
--- a/extensions/browser/extension_icon_image.cc
+++ b/extensions/browser/extension_icon_image.cc
@@ -104,7 +104,7 @@ IconImage::Source::~Source() {
 }
 
 void IconImage::Source::ResetHost() {
-  host_ = NULL;
+  host_ = nullptr;
 }
 
 gfx::ImageSkiaRep IconImage::Source::GetImageForScale(float scale) {
@@ -123,19 +123,18 @@ gfx::ImageSkiaRep IconImage::Source::GetImageForScale(float scale) {
 ////////////////////////////////////////////////////////////////////////////////
 // IconImage
 
-IconImage::IconImage(
-    content::BrowserContext* context,
-    const Extension* extension,
-    const ExtensionIconSet& icon_set,
-    int resource_size_in_dip,
-    const gfx::ImageSkia& default_icon,
-    Observer* observer)
+IconImage::IconImage(content::BrowserContext* context,
+                     const Extension* extension,
+                     const ExtensionIconSet& icon_set,
+                     int resource_size_in_dip,
+                     const gfx::ImageSkia& default_icon,
+                     Observer* observer)
     : browser_context_(context),
       extension_(extension),
       icon_set_(icon_set),
       resource_size_in_dip_(resource_size_in_dip),
       observer_(observer),
-      source_(NULL),
+      source_(nullptr),
       default_icon_(gfx::ImageSkiaOperations::CreateResizedImage(
           default_icon,
           skia::ImageOperations::RESIZE_BEST,
@@ -228,7 +227,7 @@ void IconImage::Observe(int type,
   const Extension* extension = content::Details<const Extension>(details).ptr();
 
   if (extension_ == extension)
-    extension_ = NULL;
+    extension_ = nullptr;
 }
 
 }  // namespace extensions