Move Extension into extensions namespace

chrome/common/extensions/extension_set.h

Index: chrome/common/extensions/extension_set.h
diff --git a/chrome/common/extensions/extension_set.h b/chrome/common/extensions/extension_set.h
index 9d46373996926c1b26be5ef9e6a10ca8061420dc..428df7f2fa59ee0174231614b0c01a47470d578b 100644
--- a/chrome/common/extensions/extension_set.h
+++ b/chrome/common/extensions/extension_set.h
@@ -41,15 +41,16 @@ class ExtensionURLInfo {
 // The one true extension container. Extensions are identified by their id.
 // Only one extension can be in the set with a given ID.
 class ExtensionSet {
- public:
+public:
   typedef std::pair<FilePath, std::string> ExtensionPathAndDefaultLocale;
-  typedef std::map<std::string, scoped_refptr<const Extension> > ExtensionMap;
+  typedef std::map<std::string, scoped_refptr<const extensions::Extension> >
+      ExtensionMap;
 
   // Iteration over the values of the map (given that it's an ExtensionSet,
   // it should iterate like a set iterator).
   class const_iterator :
       public std::iterator<std::input_iterator_tag,
-                           scoped_refptr<const Extension> > {
+                           scoped_refptr<const extensions::Extension> > {
    public:
     const_iterator() {}
     explicit const_iterator(ExtensionMap::const_iterator it) :
@@ -58,7 +59,7 @@ class ExtensionSet {
       ++it_;
       return *this;
     }
-    const scoped_refptr<const Extension> operator*() {
+    const scoped_refptr<const extensions::Extension> operator*() {
       return it_->second;
     }
     bool operator!=(const const_iterator& other) { return it_ != other.it_; }
@@ -83,7 +84,7 @@ class ExtensionSet {
 
   // Adds the specified extension to the set. The set becomes an owner. Any
   // previous extension with the same ID is removed.
-  void Insert(const scoped_refptr<const Extension>& extension);
+  void Insert(const scoped_refptr<const extensions::Extension>& extension);
 
   // Copies different items from |extensions| to the current set and returns
   // whether anything changed.
@@ -104,14 +105,16 @@ class ExtensionSet {
   // NOTE: This can return NULL if called before UpdateExtensions receives
   // bulk extension data (e.g. if called from
   // EventBindings::HandleContextCreated)
-  const Extension* GetExtensionOrAppByURL(const ExtensionURLInfo& info) const;
+  const extensions::Extension* GetExtensionOrAppByURL(
+      const ExtensionURLInfo& info) const;
 
   // Returns the hosted app whose web extent contains the URL.
-  const Extension* GetHostedAppByURL(const ExtensionURLInfo& info) const;
+  const extensions::Extension* GetHostedAppByURL(
+      const ExtensionURLInfo& info) const;
 
   // Returns a hosted app that contains any URL that overlaps with the given
   // extent, if one exists.
-  const Extension* GetHostedAppByOverlappingWebExtent(
+  const extensions::Extension* GetHostedAppByOverlappingWebExtent(
       const URLPatternSet& extent) const;
 
   // Returns true if |new_url| is in the extent of the same extension as
@@ -119,7 +122,7 @@ class ExtensionSet {
   bool InSameExtent(const GURL& old_url, const GURL& new_url) const;
 
   // Look up an Extension object by id.
-  const Extension* GetByID(const std::string& id) const;
+  const extensions::Extension* GetByID(const std::string& id) const;
 
   // Returns true if |info| should get extension api bindings and be permitted
   // to make api calls. Note that this is independent of what extension