RenderText: Only clip if necessary to workaround a Skia bug in the PDF path.

ui/gfx/render_text.cc

 // 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.
 
 #include "ui/gfx/render_text.h"
 
 #include <algorithm>
 
 #include "base/i18n/break_iterator.h"
 #include "base/logging.h"
@@ skipping 588 matching lines @@
 }
 
 VisualCursorDirection RenderText::GetVisualDirectionOfLogicalEnd() {
   return GetTextDirection() == base::i18n::LEFT_TO_RIGHT ?
       CURSOR_RIGHT : CURSOR_LEFT;
 }
 
 void RenderText::Draw(Canvas* canvas) {
   EnsureLayout();
 
-  gfx::Rect clip_rect(display_rect());
-  clip_rect.Inset(ShadowValue::GetMargin(text_shadows_));
+  if (clip_to_display_rect()) {
+    gfx::Rect clip_rect(display_rect());
+    clip_rect.Inset(ShadowValue::GetMargin(text_shadows_));
 
-  canvas->Save();
-  canvas->ClipRect(clip_rect);
+    canvas->Save();
+    canvas->ClipRect(clip_rect);
+  }
 
   if (!text().empty())
     DrawSelection(canvas);
 
   DrawCursor(canvas);
 
   if (!text().empty())
     DrawVisualText(canvas);
-  canvas->Restore();
+
+  if (clip_to_display_rect())
+    canvas->Restore();
 }
 
 Rect RenderText::GetCursorBounds(const SelectionModel& caret,
                                  bool insert_mode) {
   EnsureLayout();
 
   size_t caret_pos = caret.caret_pos();
   // In overtype mode, ignore the affinity and always indicate that we will
   // overtype the next character.
   LogicalCursorDirection caret_affinity =
@@ skipping 72 matching lines @@
       cursor_color_(kDefaultCursorColor),
       selection_color_(kDefaultSelectionColor),
       selection_background_focused_color_(kDefaultSelectionBackgroundColor),
       selection_background_unfocused_color_(kDefaultSelectionBackgroundColor),
       focused_(false),
       composition_range_(ui::Range::InvalidRange()),
       obscured_(false),
       fade_head_(false),
       fade_tail_(false),
       background_is_transparent_(false),
+      clip_to_display_rect_(true),
       cached_bounds_and_offset_valid_(false) {
 }
 
 const Point& RenderText::GetUpdatedDisplayOffset() {
   UpdateCachedBoundsAndOffset();
   return display_offset_;
 }
 
 SelectionModel RenderText::GetAdjacentSelectionModel(
     const SelectionModel& current,
@@ skipping 236 matching lines @@
   if (cursor_enabled() && cursor_visible() && focused()) {
     const Rect& bounds = GetUpdatedCursorBounds();
     if (bounds.width() != 0)
       canvas->FillRect(bounds, cursor_color_);
     else
       canvas->DrawRect(bounds, cursor_color_);
   }
 }
 
 }  // namespace gfx