base: Remove the string logging from CHECK().

components/pdf/renderer/pdf_accessibility_tree.cc

 // 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 <algorithm>
 
 #include "base/memory/ptr_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversion_utils.h"
 #include "components/pdf/renderer/pdf_accessibility_tree.h"
@@ skipping 174 matching lines @@
 }
 
 void PdfAccessibilityTree::Finish() {
   doc_node_->transform = base::WrapUnique(MakeTransformFromViewInfo());
 
   ui::AXTreeUpdate update;
   update.root_id = doc_node_->id;
   for (const auto& node : nodes_)
     update.nodes.push_back(*node);
 
-  CHECK(tree_.Unserialize(update)) << update.ToString() << tree_.error();
+  if (!tree_.Unserialize(update))
+    LOG(FATAL) << tree_.error() << ": " << update.ToString();
   content::RenderAccessibility* render_accessibility = GetRenderAccessibility();
   if (render_accessibility)
     render_accessibility->SetPluginTreeSource(this);
 }
 
 void PdfAccessibilityTree::ComputeParagraphAndHeadingThresholds(
     const std::vector<PP_PrivateAccessibilityTextRunInfo>& text_runs,
     double* out_heading_font_size_threshold,
     double* out_line_spacing_threshold) {
   // Scan over the font sizes and line spacing within this page and
@@ skipping 146 matching lines @@
 const ui::AXNode* PdfAccessibilityTree::GetNull() const {
   return nullptr;
 }
 
 void PdfAccessibilityTree::SerializeNode(
     const ui::AXNode* node, ui::AXNodeData* out_data) const {
   *out_data = node->data();
 }
 
 }  // namespace pdf