Refactor GuestView construction

Each GuestView derived type is now responsible for managing it's own construction.

BUG=none

Review URL: https://codereview.chromium.org/409603003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@284527 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/guest_view/app_view/app_view_guest.cc

@@ -4,6 +4,7 @@
 
 #include "chrome/browser/guest_view/app_view/app_view_guest.h"
 
+#include "base/command_line.h"
 #include "chrome/browser/extensions/chrome_extension_web_contents_observer.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/guest_view/app_view/app_view_constants.h"
@@ -11,6 +12,7 @@
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/renderer_context_menu/context_menu_delegate.h"
 #include "chrome/browser/renderer_context_menu/render_view_context_menu.h"
+#include "chrome/common/chrome_switches.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/common/renderer_preferences.h"
 #include "extensions/browser/api/app_runtime/app_runtime_api.h"
@@ -87,6 +89,16 @@ bool AppViewGuest::CompletePendingRequest(
   return true;
 }
 
+// static
+GuestViewBase* AppViewGuest::Create(content::BrowserContext* browser_context,
+                                    int guest_instance_id) {
+  if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kEnableAppView)) {
+    return NULL;
+  }
+  return new AppViewGuest(browser_context, guest_instance_id);
+}
+
 AppViewGuest::AppViewGuest(content::BrowserContext* browser_context,
                            int guest_instance_id)
     : GuestView<AppViewGuest>(browser_context, guest_instance_id),

chrome/browser/guest_view/app_view/app_view_guest.h

@@ -15,7 +15,7 @@ class ExtensionHost;
 };
 
 // An AppViewGuest provides the browser-side implementation of <appview> API.
-// AppViewGuest is created on attachment. That is, when a guest WEbContnets is
+// AppViewGuest is created on attachment. That is, when a guest WebContents is
 // associated with a particular embedder WebContents. This happens on calls to
 // the connect API.
 class AppViewGuest : public GuestView<AppViewGuest>,
@@ -31,8 +31,8 @@ class AppViewGuest : public GuestView<AppViewGuest>,
       int guest_instance_id,
       const std::string& guest_extension_id);
 
-  AppViewGuest(content::BrowserContext* browser_context,
-               int guest_instance_id);
+  static GuestViewBase* Create(content::BrowserContext* browser_context,
+                               int guest_instance_id);
 
   // ExtensionFunctionDispatcher::Delegate implementation.
   virtual extensions::WindowController* GetExtensionWindowController() const
@@ -58,6 +58,9 @@ class AppViewGuest : public GuestView<AppViewGuest>,
   virtual void DidInitialize() OVERRIDE;
 
  private:
+  AppViewGuest(content::BrowserContext* browser_context,
+               int guest_instance_id);
+
   virtual ~AppViewGuest();
 
   void OnRequest(const ExtensionHostMsg_Request_Params& params);

chrome/browser/guest_view/guest_view.h

@@ -5,6 +5,7 @@
 #ifndef CHROME_BROWSER_GUEST_VIEW_GUEST_VIEW_H_
 #define CHROME_BROWSER_GUEST_VIEW_GUEST_VIEW_H_
 
+#include "base/bind.h"
 #include "chrome/browser/guest_view/guest_view_base.h"
 #include "content/public/browser/render_frame_host.h"
 
@@ -14,6 +15,10 @@
 template <typename T>
 class GuestView : public GuestViewBase {
  public:
+  static void Register() {
+    GuestViewBase::RegisterGuestViewType(T::Type, base::Bind(&T::Create));
+  }
+
   static T* From(int embedder_process_id, int guest_instance_id) {
     GuestViewBase* guest =
         GuestViewBase::From(embedder_process_id, guest_instance_id);

chrome/browser/guest_view/guest_view_base.cc

@@ -4,14 +4,12 @@
 
 #include "chrome/browser/guest_view/guest_view_base.h"
 
-#include "base/command_line.h"
 #include "base/lazy_instance.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/guest_view/app_view/app_view_guest.h"
 #include "chrome/browser/guest_view/guest_view_constants.h"
 #include "chrome/browser/guest_view/guest_view_manager.h"
 #include "chrome/browser/guest_view/web_view/web_view_guest.h"
-#include "chrome/common/chrome_switches.h"
 #include "chrome/common/content_settings.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_process_host.h"
@@ -25,6 +23,11 @@ using content::WebContents;
 
 namespace {
 
+typedef std::map<std::string, GuestViewBase::GuestCreationCallback>
+    GuestViewCreationMap;
+static base::LazyInstance<GuestViewCreationMap> guest_view_registry =
+    LAZY_INSTANCE_INITIALIZER;
+
 typedef std::map<WebContents*, GuestViewBase*> WebContentsGuestViewMap;
 static base::LazyInstance<WebContentsGuestViewMap> webcontents_guestview_map =
     LAZY_INSTANCE_INITIALIZER;
@@ -139,22 +142,34 @@ void GuestViewBase::InitWithWebContents(
   DidInitialize();
 }
 
+// static
+void GuestViewBase::RegisterGuestViewTypes() {
+  GuestView<WebViewGuest>::Register();
+  GuestView<AppViewGuest>::Register();
+}
+
+// static
+void GuestViewBase::RegisterGuestViewType(
+    const std::string& view_type,
+    const GuestCreationCallback& callback) {
+  GuestViewCreationMap::iterator it =
+      guest_view_registry.Get().find(view_type);
+  DCHECK(it == guest_view_registry.Get().end());
+  guest_view_registry.Get()[view_type] = callback;
+}
+
 // static
 GuestViewBase* GuestViewBase::Create(
     content::BrowserContext* browser_context,
     int guest_instance_id,
     const std::string& view_type) {
-  if (view_type == WebViewGuest::Type) {
-    return new WebViewGuest(browser_context, guest_instance_id);
-  } else if (view_type == AppViewGuest::Type) {
-    if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
-        switches::kEnableAppView)) {
-      return NULL;
-    }
-    return new AppViewGuest(browser_context, guest_instance_id);
+  GuestViewCreationMap::iterator it =
+      guest_view_registry.Get().find(view_type);
+  if (it == guest_view_registry.Get().end()) {
+    NOTREACHED();
+    return NULL;
   }
-  NOTREACHED();
-  return NULL;
+  return it->second.Run(browser_context, guest_instance_id);
 }
 
 // static

chrome/browser/guest_view/guest_view_base.h

@@ -52,6 +52,13 @@ class GuestViewBase : public content::BrowserPluginGuestDelegate,
     return NULL;
   }
 
+  static void RegisterGuestViewTypes();
+
+  typedef base::Callback<GuestViewBase*(
+      content::BrowserContext*, int)> GuestCreationCallback;
+  static void RegisterGuestViewType(const std::string& view_type,
+                                    const GuestCreationCallback& callback);
+
   static GuestViewBase* Create(content::BrowserContext* browser_context,
                                int guest_instance_id,
                                const std::string& view_type);

chrome/browser/guest_view/guest_view_manager.cc

@@ -30,6 +30,7 @@ GuestViewManagerFactory* GuestViewManager::factory_ = NULL;
 
 GuestViewManager::GuestViewManager(content::BrowserContext* context)
     : current_instance_id_(0), last_instance_id_removed_(0), context_(context) {
+  GuestViewBase::RegisterGuestViewTypes();
 }
 
 GuestViewManager::~GuestViewManager() {}

chrome/browser/guest_view/web_view/web_view_guest.cc

@@ -169,15 +169,10 @@ void ParsePartitionParam(const base::DictionaryValue& create_params,
 
 }  // namespace
 
-WebViewGuest::WebViewGuest(content::BrowserContext* browser_context,
-                           int guest_instance_id)
-    : GuestView<WebViewGuest>(browser_context, guest_instance_id),
-      pending_context_menu_request_id_(0),
-      is_overriding_user_agent_(false),
-      chromevox_injected_(false),
-      current_zoom_factor_(1.0),
-      find_helper_(this),
-      javascript_dialog_helper_(this) {
+// static
+GuestViewBase* WebViewGuest::Create(content::BrowserContext* browser_context,
+                                    int guest_instance_id) {
+  return new WebViewGuest(browser_context, guest_instance_id);
 }
 
 // static
@@ -698,6 +693,17 @@ bool WebViewGuest::ClearData(const base::Time remove_since,
   return true;
 }
 
+WebViewGuest::WebViewGuest(content::BrowserContext* browser_context,
+                           int guest_instance_id)
+    : GuestView<WebViewGuest>(browser_context, guest_instance_id),
+      pending_context_menu_request_id_(0),
+      is_overriding_user_agent_(false),
+      chromevox_injected_(false),
+      current_zoom_factor_(1.0),
+      find_helper_(this),
+      javascript_dialog_helper_(this) {
+}
+
 WebViewGuest::~WebViewGuest() {
 }
 

chrome/browser/guest_view/web_view/web_view_guest.h

@@ -45,8 +45,8 @@ class SimpleMenuModel;
 class WebViewGuest : public GuestView<WebViewGuest>,
                      public content::NotificationObserver {
  public:
-  WebViewGuest(content::BrowserContext* browser_context,
-               int guest_instance_id);
+  static GuestViewBase* Create(content::BrowserContext* browser_context,
+                               int guest_instance_id);
 
   // For WebViewGuest, we create special guest processes, which host the
   // tag content separately from the main application that embeds the tag.
@@ -238,6 +238,9 @@ class WebViewGuest : public GuestView<WebViewGuest>,
 
  private:
   friend class WebViewPermissionHelper;
+  WebViewGuest(content::BrowserContext* browser_context,
+               int guest_instance_id);
+
   virtual ~WebViewGuest();
 
   // Returns the top level items (ignoring submenus) as Value.