OOPIF support for testRunner.dumpAsText and similar layout dumps.

content/shell/common/shell_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 <string>
 #include <vector>
 
+#include "components/test_runner/layout_dump_flags.h"
 #include "content/public/common/common_param_traits.h"
 #include "content/public/common/page_state.h"
 #include "content/shell/common/leak_detection_result.h"
 #include "content/shell/common/shell_test_configuration.h"
 #include "ipc/ipc_message_macros.h"
 #include "ipc/ipc_platform_file.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/gfx/ipc/gfx_param_traits.h"
 
 #define IPC_MESSAGE_START ShellMsgStart
 
 IPC_STRUCT_TRAITS_BEGIN(content::ShellTestConfiguration)
 IPC_STRUCT_TRAITS_MEMBER(current_working_directory)
 IPC_STRUCT_TRAITS_MEMBER(temp_path)
 IPC_STRUCT_TRAITS_MEMBER(test_url)
 IPC_STRUCT_TRAITS_MEMBER(enable_pixel_dumping)
 IPC_STRUCT_TRAITS_MEMBER(allow_external_pages)
 IPC_STRUCT_TRAITS_MEMBER(expected_pixel_hash)
 IPC_STRUCT_TRAITS_MEMBER(initial_size)
 IPC_STRUCT_TRAITS_END()
 
+IPC_ENUM_TRAITS_MIN_MAX_VALUE(
+    test_runner::LayoutDumpMode,
+    test_runner::LayoutDumpMode::DUMP_AS_TEXT,
+    test_runner::LayoutDumpMode::DUMP_SCROLL_POSITIONS)
+
+IPC_STRUCT_TRAITS_BEGIN(test_runner::LayoutDumpFlags)
+  IPC_STRUCT_TRAITS_MEMBER(main_dump_mode)
+  IPC_STRUCT_TRAITS_MEMBER(dump_as_printed)
+  IPC_STRUCT_TRAITS_MEMBER(dump_child_frames)
+  IPC_STRUCT_TRAITS_MEMBER(dump_line_box_trees)
+  IPC_STRUCT_TRAITS_MEMBER(debug_render_tree)
+IPC_STRUCT_TRAITS_END()
+
 // Tells the renderer to reset all test runners.
 IPC_MESSAGE_ROUTED0(ShellViewMsg_Reset)
 
 // Sets the path to the WebKit checkout.
 IPC_MESSAGE_CONTROL1(ShellViewMsg_SetWebKitSourceDir,
                      base::FilePath /* webkit source dir */)
 
 // Sets the initial configuration to use for layout tests.
 IPC_MESSAGE_ROUTED1(ShellViewMsg_SetTestConfiguration,
                     content::ShellTestConfiguration)
 
 // Tells the main window that a secondary window in a different process invoked
 // notifyDone().
 IPC_MESSAGE_ROUTED0(ShellViewMsg_NotifyDone)
 
 // Pushes a snapshot of the current session history from the browser process.
 // This includes only information about those RenderViews that are in the
 // same process as the main window of the layout test and that are the current
 // active RenderView of their WebContents.
 IPC_MESSAGE_ROUTED3(
     ShellViewMsg_SessionHistory,
     std::vector<int> /* routing_ids */,
     std::vector<std::vector<content::PageState> > /* session_histories */,
     std::vector<unsigned> /* current_entry_indexes */)
 
 IPC_MESSAGE_ROUTED0(ShellViewMsg_TryLeakDetection)
 
+// Asks a frame to dump its contents into a string and send them back over IPC.
+IPC_MESSAGE_ROUTED1(ShellViewMsg_LayoutDumpRequest,
+                    test_runner::LayoutDumpFlags)
+
+// Notifies BlinkTestRunner that the layout dump has completed
+// (and that it can proceed with finishing up the test).
+IPC_MESSAGE_ROUTED1(ShellViewMsg_LayoutDumpCompleted,
+                    std::string /* completed/stitched layout dump */)
+
 // Send a text dump of the WebContents to the render host.
 IPC_MESSAGE_ROUTED1(ShellViewHostMsg_TextDump,
                     std::string /* dump */)
 
+// Asks the browser process to perform a layout dump (potentially spanning
+// multiple cross-process frames) using the given flags.  This triggers
+// multiple ShellViewMsg_LayoutDumpRequest / ShellViewHostMsg_LayoutDumpResponse
+// messages and ends with sending of ShellViewMsg_LayoutDumpCompleted.
+IPC_MESSAGE_ROUTED1(ShellViewHostMsg_InitiateLayoutDump,
+                    test_runner::LayoutDumpFlags)
+
+// Sends a layout dump of a frame (response to ShellViewMsg_LayoutDumpRequest).
+IPC_MESSAGE_ROUTED1(ShellViewHostMsg_LayoutDumpResponse, std::string /* dump */)
+
 // Send an image dump of the WebContents to the render host.
 IPC_MESSAGE_ROUTED2(ShellViewHostMsg_ImageDump,
                     std::string /* actual pixel hash */,
                     SkBitmap /* image */)
 
 // Send an audio dump to the render host.
 IPC_MESSAGE_ROUTED1(ShellViewHostMsg_AudioDump,
                     std::vector<unsigned char> /* audio data */)
 
 IPC_MESSAGE_ROUTED0(ShellViewHostMsg_TestFinished)
@@ skipping 30 matching lines @@
                     content::LeakDetectionResult /* result */)
 
 IPC_MESSAGE_ROUTED1(ShellViewHostMsg_SetBluetoothManualChooser,
                     bool /* enable */)
 IPC_MESSAGE_ROUTED0(ShellViewHostMsg_GetBluetoothManualChooserEvents)
 IPC_MESSAGE_ROUTED1(ShellViewMsg_ReplyBluetoothManualChooserEvents,
                     std::vector<std::string> /* events */)
 IPC_MESSAGE_ROUTED2(ShellViewHostMsg_SendBluetoothManualChooserEvent,
                     std::string /* event */,
                     std::string /* argument */)