Revert "Change call-sites now that SkCanvas is not ref-counted"

ui/gfx/render_text_unittest.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 <limits.h>
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 3627 matching lines @@
       L"gAXAXAXAXAXAXA",
       // TODO(dschuyler): A-Ring draws outside GetStringSize; crbug.com/459812.
       // L"g\x00C5X\x00C5X\x00C5X\x00C5X\x00C5X\x00C5X\x00C5",
       L"\x0647\x0654\x0647\x0654\x0647\x0654\x0647\x0654\x0645\x0631\x062D"
       L"\x0628\x0627"};
   const Size kCanvasSize(300, 50);
   const int kTestSize = 10;
 
   sk_sp<SkSurface> surface =
       SkSurface::MakeRasterN32Premul(kCanvasSize.width(), kCanvasSize.height());
-  Canvas canvas(surface->getCanvas(), 1.0f);
+  Canvas canvas(sk_ref_sp(surface->getCanvas()), 1.0f);
   RenderText* render_text = GetRenderText();
   render_text->SetHorizontalAlignment(ALIGN_LEFT);
   render_text->SetColor(SK_ColorBLACK);
 
   for (auto* string : kTestStrings) {
     surface->getCanvas()->clear(SK_ColorWHITE);
     render_text->SetText(WideToUTF16(string));
     const Size string_size = render_text->GetStringSize();
     render_text->ApplyBaselineStyle(SUPERSCRIPT, Range(1, 2));
     render_text->ApplyBaselineStyle(SUPERIOR, Range(3, 4));
@@ skipping 72 matching lines @@
 
 // Ensure that the text will clip to the display rect. Draws to a canvas and
 // checks whether any pixel beyond the bounding rectangle is colored.
 TEST_P(RenderTextTest, TextDoesClip) {
   const wchar_t* kTestStrings[] = {L"TEST", L"W", L"WWWW", L"gAXAXWWWW"};
   const Size kCanvasSize(300, 50);
   const int kTestSize = 10;
 
   sk_sp<SkSurface> surface =
       SkSurface::MakeRasterN32Premul(kCanvasSize.width(), kCanvasSize.height());
-  Canvas canvas(surface->getCanvas(), 1.0f);
+  Canvas canvas(sk_ref_sp(surface->getCanvas()), 1.0f);
   RenderText* render_text = GetRenderText();
   render_text->SetHorizontalAlignment(ALIGN_LEFT);
   render_text->SetColor(SK_ColorBLACK);
 
   for (auto* string : kTestStrings) {
     surface->getCanvas()->clear(SK_ColorWHITE);
     render_text->SetText(WideToUTF16(string));
     const Size string_size = render_text->GetStringSize();
     int fake_width = string_size.width() / 2;
     int fake_height = string_size.height() / 2;
@@ skipping 342 matching lines @@
                         ::testing::Values(RENDER_TEXT_HARFBUZZ),
                         PrintRenderTextBackend());
 #endif
 
 INSTANTIATE_TEST_CASE_P(,
                         RenderTextHarfBuzzTest,
                         ::testing::Values(RENDER_TEXT_HARFBUZZ),
                         PrintRenderTextBackend());
 
 }  // namespace gfx