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

skia/ext/platform_canvas.h

Index: skia/ext/platform_canvas.h
diff --git a/skia/ext/platform_canvas.h b/skia/ext/platform_canvas.h
index 04a4d177ab968a479066f3ee9ccea13576cd952a..c71c0dc702a023258cbb22bd6b23dfb18fddd628 100644
--- a/skia/ext/platform_canvas.h
+++ b/skia/ext/platform_canvas.h
@@ -45,68 +45,64 @@ enum OnFailureType {
 #if defined(WIN32)
   // The shared_section parameter is passed to gfx::PlatformDevice::create.
   // See it for details.
-SK_API std::unique_ptr<SkCanvas> CreatePlatformCanvas(
-    int width,
-    int height,
-    bool is_opaque,
-    HANDLE shared_section,
-    OnFailureType failure_type);
-
-// Draws the top layer of the canvas into the specified HDC. Only works
-// with a SkCanvas with a BitmapPlatformDevice. Will create a temporary
-// HDC to back the canvas if one doesn't already exist, tearing it down
-// before returning. If |src_rect| is null, copies the entire canvas.
-SK_API void DrawToNativeContext(SkCanvas* canvas,
-                                HDC hdc,
-                                int x,
-                                int y,
-                                const RECT* src_rect);
+  SK_API SkCanvas* CreatePlatformCanvas(int width,
+                                        int height,
+                                        bool is_opaque,
+                                        HANDLE shared_section,
+                                        OnFailureType failure_type);
+
+  // Draws the top layer of the canvas into the specified HDC. Only works
+  // with a SkCanvas with a BitmapPlatformDevice. Will create a temporary
+  // HDC to back the canvas if one doesn't already exist, tearing it down
+  // before returning. If |src_rect| is null, copies the entire canvas.
+  SK_API void DrawToNativeContext(SkCanvas* canvas,
+                                  HDC hdc,
+                                  int x,
+                                  int y,
+                                  const RECT* src_rect);
 #elif defined(__APPLE__)
-SK_API std::unique_ptr<SkCanvas> CreatePlatformCanvas(
-    CGContextRef context,
-    int width,
-    int height,
-    bool is_opaque,
-    OnFailureType failure_type);
-
-SK_API std::unique_ptr<SkCanvas> CreatePlatformCanvas(
-    int width,
-    int height,
-    bool is_opaque,
-    uint8_t* context,
-    OnFailureType failure_type);
+  SK_API SkCanvas* CreatePlatformCanvas(CGContextRef context,
+                                        int width,
+                                        int height,
+                                        bool is_opaque,
+                                        OnFailureType failure_type);
+
+  SK_API SkCanvas* CreatePlatformCanvas(int width,
+                                        int height,
+                                        bool is_opaque,
+                                        uint8_t* context,
+                                        OnFailureType failure_type);
 #elif defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__) || \
       defined(__sun) || defined(ANDROID)
   // Linux ---------------------------------------------------------------------
 
   // Construct a canvas from the given memory region. The memory is not cleared
   // first. @data must be, at least, @height * StrideForWidth(@width) bytes.
-SK_API std::unique_ptr<SkCanvas> CreatePlatformCanvas(
-    int width,
-    int height,
-    bool is_opaque,
-    uint8_t* data,
-    OnFailureType failure_type);
+  SK_API SkCanvas* CreatePlatformCanvas(int width,
+                                        int height,
+                                        bool is_opaque,
+                                        uint8_t* data,
+                                        OnFailureType failure_type);
 #endif
 
-static inline std::unique_ptr<SkCanvas> CreatePlatformCanvas(int width,
-                                                             int height,
-                                                             bool is_opaque) {
+static inline SkCanvas* CreatePlatformCanvas(int width,
+                                             int height,
+                                             bool is_opaque) {
   return CreatePlatformCanvas(width, height, is_opaque, 0, CRASH_ON_FAILURE);
 }
 
-SK_API std::unique_ptr<SkCanvas> CreateCanvas(const sk_sp<SkBaseDevice>& device,
-                                              OnFailureType failure_type);
+SK_API SkCanvas* CreateCanvas(const sk_sp<SkBaseDevice>& device,
+                              OnFailureType failure_type);
 
-static inline std::unique_ptr<SkCanvas> CreateBitmapCanvas(int width,
-                                                           int height,
-                                                           bool is_opaque) {
+static inline SkCanvas* CreateBitmapCanvas(int width,
+                                           int height,
+                                           bool is_opaque) {
   return CreatePlatformCanvas(width, height, is_opaque, 0, CRASH_ON_FAILURE);
 }
 
-static inline std::unique_ptr<SkCanvas> TryCreateBitmapCanvas(int width,
-                                                              int height,
-                                                              bool is_opaque) {
+static inline SkCanvas* TryCreateBitmapCanvas(int width,
+                                              int height,
+                                              bool is_opaque) {
   return CreatePlatformCanvas(width, height, is_opaque, 0,
                               RETURN_NULL_ON_FAILURE);
 }