Move protocol registration from WebViewClient to WebFrameClient, part 1/3.

content/common/frame_messages.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // IPC messages for interacting with frames.
 // Multiply-included message file, hence no include guard.
 
 #include "cc/surfaces/surface_id.h"
 #include "cc/surfaces/surface_sequence.h"
 #include "content/common/content_export.h"
@@ skipping 955 matching lines @@
 IPC_MESSAGE_ROUTED1(FrameHostMsg_DidChangeThemeColor,
                     SkColor /* theme_color */)
 
 // Response for FrameMsg_TextSurroundingSelectionRequest, |startOffset| and
 // |endOffset| are the offsets of the selection in the returned |content|.
 IPC_MESSAGE_ROUTED3(FrameHostMsg_TextSurroundingSelectionResponse,
                     base::string16,  /* content */
                     size_t, /* startOffset */
                     size_t /* endOffset */)
 
+// Register a new handler for URL requests with the given scheme.
+IPC_MESSAGE_ROUTED4(FrameHostMsg_RegisterProtocolHandler,
+                    std::string /* scheme */,
+                    GURL /* url */,
+                    base::string16 /* title */,
+                    bool /* user_gesture */)
+
+// Unregister the registered handler for URL requests with the given scheme.
+IPC_MESSAGE_ROUTED3(FrameHostMsg_UnregisterProtocolHandler,
+                    std::string /* scheme */,
+                    GURL /* url */,
+                    bool /* user_gesture */)
+
 // PlzNavigate
 // Tells the browser to perform a navigation.
 IPC_MESSAGE_ROUTED3(FrameHostMsg_BeginNavigation,
                     content::CommonNavigationParams,
                     content::BeginNavigationParams,
                     scoped_refptr<content::ResourceRequestBody>)
 
 // Sent once a paint happens after the first non empty layout. In other words
 // after the frame has painted something.
 IPC_MESSAGE_ROUTED0(FrameHostMsg_DidFirstVisuallyNonEmptyPaint)
@@ skipping 16 matching lines @@
                     FrameMsg_PostMessage_Params)
 
 #if defined(OS_MACOSX) || defined(OS_ANDROID)
 
 // Message to show/hide a popup menu using native controls.
 IPC_MESSAGE_ROUTED1(FrameHostMsg_ShowPopup,
                     FrameHostMsg_ShowPopup_Params)
 IPC_MESSAGE_ROUTED0(FrameHostMsg_HidePopup)
 
 #endif