Mojoify the RequestThumbnailForContextNode IPC message and reply

chrome/common/render_messages.h

 // Copyright (c) 2012 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.
 
 // Multiply-included file, no traditional include guard.
 #include <stdint.h>
 #include <string>
 #include <vector>
 
 #include "base/files/file_path.h"
@@ skipping 119 matching lines @@
                     bool /* allowed */)
 
 // Sent when the profile changes the kSafeBrowsingEnabled preference.
 IPC_MESSAGE_ROUTED1(ChromeViewMsg_SetClientSidePhishingDetection,
                     bool /* enable_phishing_detection */)
 
 // Reloads the image selected by the most recently opened context menu
 // (if there indeed is an image at that location).
 IPC_MESSAGE_ROUTED0(ChromeViewMsg_RequestReloadImageForContextNode)
 
-// Asks the renderer for a thumbnail of the image selected by the most
-// recently opened context menu, if there is one. If the image's area
-// is greater than thumbnail_min_area it will be downscaled to
-// be within thumbnail_max_size. The possibly downsampled image will be
-// returned in a ChromeViewHostMsg_RequestThumbnailForContextNode_ACK message.
-IPC_MESSAGE_ROUTED3(ChromeViewMsg_RequestThumbnailForContextNode,
-                    int /* thumbnail_min_area_pixels */,
-                    gfx::Size /* thumbnail_max_size_pixels */,
-                    int /* ID of the callback */)
-
 // Notifies the renderer whether hiding/showing the browser controls is enabled,
 // what the current state should be, and whether or not to animate to the
 // proper state.
 IPC_MESSAGE_ROUTED3(ChromeViewMsg_UpdateBrowserControlsState,
                     content::BrowserControlsState /* constraints */,
                     content::BrowserControlsState /* current */,
                     bool /* animate */)
 
 // Updates the window features of the render view.
 IPC_MESSAGE_ROUTED1(ChromeViewMsg_SetWindowFeatures,
                     blink::mojom::WindowFeatures /* window_features */)
 
-// Responds to the request for a thumbnail.
-// Thumbnail data will be empty is a thumbnail could not be produced.
-IPC_MESSAGE_ROUTED3(ChromeViewHostMsg_RequestThumbnailForContextNode_ACK,
-                    std::string /* JPEG-encoded thumbnail data */,
-                    gfx::Size /* original size of the image */,
-                    int /* ID of the callback */)
-
 // Requests application info for the page. The renderer responds back with
 // ChromeViewHostMsg_DidGetWebApplicationInfo.
 IPC_MESSAGE_ROUTED0(ChromeViewMsg_GetWebApplicationInfo)
 
 // chrome.principals messages ------------------------------------------------
 
 // Message sent from the renderer to the browser to get the list of browser
 // managed accounts for the given origin.
 IPC_SYNC_MESSAGE_CONTROL1_1(ChromeViewHostMsg_GetManagedAccounts,
                             GURL /* current URL */,
@@ skipping 204 matching lines @@
 // process so that they can be assigned to an Instant renderer.
 IPC_MESSAGE_CONTROL2(ChromeViewMsg_SetSearchURLs,
                      std::vector<GURL> /* search_urls */,
                      GURL /* new_tab_page_url */)
 
 #if BUILDFLAG(ENABLE_PLUGINS)
 // Sent by the renderer to check if crash reporting is enabled.
 IPC_SYNC_MESSAGE_CONTROL0_1(ChromeViewHostMsg_IsCrashReportingEnabled,
                             bool /* enabled */)
 #endif