GuestView: Decouple extension IPCs from soon-to-be component IPCs

extensions/browser/guest_view/extensions_guest_view_message_filter.cc

Index: extensions/browser/guest_view/extensions_guest_view_message_filter.cc
diff --git a/extensions/browser/guest_view/guest_view_message_filter.cc b/extensions/browser/guest_view/extensions_guest_view_message_filter.cc
similarity index 66%
copy from extensions/browser/guest_view/guest_view_message_filter.cc
copy to extensions/browser/guest_view/extensions_guest_view_message_filter.cc
index 7f43a3ed9a977f263611b97af4acc8e9614afd0e..215bf816af4b2187607f1edd7445604caaf8a230 100644
--- a/extensions/browser/guest_view/guest_view_message_filter.cc
+++ b/extensions/browser/guest_view/extensions_guest_view_message_filter.cc
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "extensions/browser/guest_view/guest_view_message_filter.h"
+#include "extensions/browser/guest_view/extensions_guest_view_message_filter.h"
 
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/render_frame_host.h"
@@ -15,7 +15,7 @@
 #include "extensions/browser/guest_view/web_view/web_view_content_script_manager.h"
 #include "extensions/browser/guest_view/web_view/web_view_guest.h"
 #include "extensions/browser/guest_view/web_view/web_view_renderer_state.h"
-#include "extensions/common/guest_view/guest_view_messages.h"
+#include "extensions/common/guest_view/extensions_guest_view_messages.h"
 #include "ipc/ipc_message_macros.h"
 
 using content::BrowserContext;
@@ -25,26 +25,26 @@ using content::WebContents;
 
 namespace extensions {
 
-GuestViewMessageFilter::GuestViewMessageFilter(int render_process_id,
-                                               BrowserContext* context)
-    : BrowserMessageFilter(GuestViewMsgStart),
+ExtensionsGuestViewMessageFilter::ExtensionsGuestViewMessageFilter(
+    int render_process_id,
+    BrowserContext* context)
+    : BrowserMessageFilter(ExtensionsGuestViewMsgStart),
       render_process_id_(render_process_id),
       browser_context_(context),
       weak_ptr_factory_(this) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 }
 
-GuestViewMessageFilter::~GuestViewMessageFilter() {
+ExtensionsGuestViewMessageFilter::~ExtensionsGuestViewMessageFilter() {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 }
 
-void GuestViewMessageFilter::OverrideThreadForMessage(
+void ExtensionsGuestViewMessageFilter::OverrideThreadForMessage(
     const IPC::Message& message,
     BrowserThread::ID* thread) {
   switch (message.type()) {
-    case GuestViewHostMsg_AttachGuest::ID:
-    case GuestViewHostMsg_CreateMimeHandlerViewGuest::ID:
-    case GuestViewHostMsg_ResizeGuest::ID:
+    case ExtensionsGuestViewHostMsg_CreateMimeHandlerViewGuest::ID:
+    case ExtensionsGuestViewHostMsg_ResizeGuest::ID:
       *thread = BrowserThread::UI;
       break;
     default:
@@ -52,45 +52,39 @@ void GuestViewMessageFilter::OverrideThreadForMessage(
   }
 }
 
-void GuestViewMessageFilter::OnDestruct() const {
+void ExtensionsGuestViewMessageFilter::OnDestruct() const {
   // Destroy the filter on the IO thread since that's where its weak pointers
   // are being used.
   BrowserThread::DeleteOnIOThread::Destruct(this);
 }
 
-bool GuestViewMessageFilter::OnMessageReceived(const IPC::Message& message) {
+bool ExtensionsGuestViewMessageFilter::OnMessageReceived(
+    const IPC::Message& message) {
   bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP(GuestViewMessageFilter, message)
-    IPC_MESSAGE_HANDLER(GuestViewHostMsg_AttachGuest, OnAttachGuest)
-    IPC_MESSAGE_HANDLER(GuestViewHostMsg_CreateMimeHandlerViewGuest,
-                        OnCreateMimeHandlerViewGuest)
-    IPC_MESSAGE_HANDLER(GuestViewHostMsg_ResizeGuest, OnResizeGuest)
-    IPC_MESSAGE_HANDLER(GuestViewHostMsg_CanExecuteContentScriptSync,
+  IPC_BEGIN_MESSAGE_MAP(ExtensionsGuestViewMessageFilter, message)
+    IPC_MESSAGE_HANDLER(ExtensionsGuestViewHostMsg_CanExecuteContentScriptSync,
                         OnCanExecuteContentScript)
+    IPC_MESSAGE_HANDLER(ExtensionsGuestViewHostMsg_CreateMimeHandlerViewGuest,
+                        OnCreateMimeHandlerViewGuest)
+    IPC_MESSAGE_HANDLER(ExtensionsGuestViewHostMsg_ResizeGuest, OnResizeGuest)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
-void GuestViewMessageFilter::OnAttachGuest(
-    int element_instance_id,
-    int guest_instance_id,
-    const base::DictionaryValue& params) {
-  DCHECK_CURRENTLY_ON(BrowserThread::UI);
-  auto manager =
-      GuestViewManager::FromBrowserContextIfAvailable(browser_context_);
-  // We should have a GuestViewManager at this point. If we don't then the
-  // embedder is misbehaving.
-  if (!manager)
-    return;
+void ExtensionsGuestViewMessageFilter::OnCanExecuteContentScript(
+    int render_view_id,
+    int script_id,
+    bool* allowed) {
+  WebViewRendererState::WebViewInfo info;
+  WebViewRendererState::GetInstance()->GetInfo(render_process_id_,
+                                               render_view_id, &info);
 
-  manager->AttachGuest(render_process_id_,
-                       element_instance_id,
-                       guest_instance_id,
-                       params);
+  *allowed =
+      info.content_script_ids.find(script_id) != info.content_script_ids.end();
 }
 
-void GuestViewMessageFilter::OnCreateMimeHandlerViewGuest(
+void ExtensionsGuestViewMessageFilter::OnCreateMimeHandlerViewGuest(
     int render_frame_id,
     const std::string& view_id,
     int element_instance_id,
@@ -107,12 +101,14 @@ void GuestViewMessageFilter::OnCreateMimeHandlerViewGuest(
     return;
 
   GuestViewManager::WebContentsCreatedCallback callback =
-      base::Bind(&GuestViewMessageFilter::MimeHandlerViewGuestCreatedCallback,
-                 this,
-                 element_instance_id,
-                 render_process_id_,
-                 render_frame_id,
-                 element_size);
+      base::Bind(
+          &ExtensionsGuestViewMessageFilter::
+              MimeHandlerViewGuestCreatedCallback,
+          this,
+          element_instance_id,
+          render_process_id_,
+          render_frame_id,
+          element_size);
 
   base::DictionaryValue create_params;
   create_params.SetString(mime_handler_view::kViewId, view_id);
@@ -124,9 +120,10 @@ void GuestViewMessageFilter::OnCreateMimeHandlerViewGuest(
                        callback);
 }
 
-void GuestViewMessageFilter::OnResizeGuest(int render_frame_id,
-                                           int element_instance_id,
-                                           const gfx::Size& new_size) {
+void ExtensionsGuestViewMessageFilter::OnResizeGuest(
+    int render_frame_id,
+    int element_instance_id,
+    const gfx::Size& new_size) {
   auto manager =
       GuestViewManager::FromBrowserContextIfAvailable(browser_context_);
   // We should have a GuestViewManager at this point. If we don't then the
@@ -146,18 +143,7 @@ void GuestViewMessageFilter::OnResizeGuest(int render_frame_id,
   mhvg->SetSize(set_size_params);
 }
 
-void GuestViewMessageFilter::OnCanExecuteContentScript(int render_view_id,
-                                                       int script_id,
-                                                       bool* allowed) {
-  WebViewRendererState::WebViewInfo info;
-  WebViewRendererState::GetInstance()->GetInfo(render_process_id_,
-                                               render_view_id, &info);
-
-  *allowed =
-      info.content_script_ids.find(script_id) != info.content_script_ids.end();
-}
-
-void GuestViewMessageFilter::MimeHandlerViewGuestCreatedCallback(
+void ExtensionsGuestViewMessageFilter::MimeHandlerViewGuestCreatedCallback(
     int element_instance_id,
     int embedder_render_process_id,
     int embedder_render_frame_id,
@@ -185,7 +171,8 @@ void GuestViewMessageFilter::MimeHandlerViewGuestCreatedCallback(
                        attach_params);
 
   rfh->Send(
-      new GuestViewMsg_CreateMimeHandlerViewGuestACK(element_instance_id));
+      new ExtensionsGuestViewMsg_CreateMimeHandlerViewGuestACK(
+          element_instance_id));
 }
 
 }  // namespace extensions