OOPIF support for testRunner.dumpAsText and similar layout dumps.

components/test_runner/layout_dump.cc

Index: components/test_runner/layout_dump.cc
diff --git a/components/test_runner/layout_dump.cc b/components/test_runner/layout_dump.cc
new file mode 100644
index 0000000000000000000000000000000000000000..9fc7f188d41c2034d7861742eda5af9f38c9eebd
--- /dev/null
+++ b/components/test_runner/layout_dump.cc
@@ -0,0 +1,98 @@
+// Copyright 2016 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.
+
+#include "components/test_runner/layout_dump.h"
+
+#include "base/logging.h"
+#include "base/strings/stringprintf.h"
+#include "third_party/WebKit/public/platform/WebSize.h"
+#include "third_party/WebKit/public/platform/WebString.h"
+#include "third_party/WebKit/public/web/WebDocument.h"
+#include "third_party/WebKit/public/web/WebElement.h"
+#include "third_party/WebKit/public/web/WebFrame.h"
+#include "third_party/WebKit/public/web/WebLocalFrame.h"
+
+namespace test_runner {
+
+using blink::WebFrame;
+using blink::WebLocalFrame;
+using blink::WebSize;
+
+namespace {
+
+std::string DumpFrameHeaderIfNeeded(WebFrame* frame) {
+  std::string result;
+
+  // Add header for all but the main frame. Skip empty frames.
+  if (frame->parent() && !frame->document().documentElement().isNull()) {
+    result.append("\n--------\nFrame: '");
+    result.append(frame->uniqueName().utf8());
+    result.append("'\n--------\n");
+  }
+
+  return result;
+}
+
+std::string DumpFrameScrollPosition(WebFrame* frame) {
+  std::string result;
+  WebSize offset = frame->scrollOffset();
+  if (offset.width > 0 || offset.height > 0) {
+    if (frame->parent()) {
+      result =
+          std::string("frame '") + frame->uniqueName().utf8().data() + "' ";
+    }
+    base::StringAppendF(&result, "scrolled to %d,%d\n", offset.width,
+                        offset.height);
+  }
+
+  return result;
+}
+
+}  // namespace
+
+std::string DumpLayout(WebLocalFrame* frame, const LayoutDumpFlags& flags) {
+  DCHECK(frame);
+  std::string result;
+
+  switch (flags.main_dump_mode) {
+    case LayoutDumpMode::DUMP_AS_TEXT:
+      result = DumpFrameHeaderIfNeeded(frame);
+      if (flags.dump_as_printed && frame->document().isHTMLDocument()) {
+        result +=
+            frame->layoutTreeAsText(WebFrame::LayoutAsTextPrinting).utf8();
+      } else {
+        result += frame->document().contentAsTextForTesting().utf8();
+      }
+      result += "\n";
+      break;
+    case LayoutDumpMode::DUMP_AS_MARKUP:
+      DCHECK(!flags.dump_as_printed);
+      result = DumpFrameHeaderIfNeeded(frame);
+      result += frame->contentAsMarkup().utf8();
+      result += "\n";
+      break;
+    case LayoutDumpMode::DUMP_SCROLL_POSITIONS:
+      if (frame->parent() == nullptr) {
+        WebFrame::LayoutAsTextControls layout_text_behavior =
+            WebFrame::LayoutAsTextNormal;
+        if (flags.dump_as_printed)
+          layout_text_behavior |= WebFrame::LayoutAsTextPrinting;
+        if (flags.debug_render_tree)
+          layout_text_behavior |= WebFrame::LayoutAsTextDebug;
+        if (flags.dump_line_box_trees)
+          layout_text_behavior |= WebFrame::LayoutAsTextWithLineTrees;
+        result = frame->layoutTreeAsText(layout_text_behavior).utf8();
+      }
+      result += DumpFrameScrollPosition(frame);
+      break;
+    default:
+      DCHECK(false) << static_cast<int>(flags.main_dump_mode);
+      result = "";
+      break;
+  }
+
+  return result;
+}
+
+}  // namespace test_runner