Compile all fiddle examples locally

Motivation: it would be a good idea if the API documentation examples
were checked into the skia repository, so we could make sure they
compile as part of the commit queue.

Fiddle would make/update a named fiddle each time it gets a new
commit of Skia, extracted from the code in the examples/ directory.
The docs would point at those named fiddles.  Named fiddles have urls
in the form:

    https://fiddle.skia.org/c/@Bitmap_000

Then we would stick a link to the example into the header documentation
like this:

    /** Allocates the pixel memory for the bitmap, given its dimensions
        and SkColorType. Returns true on success, where success means
        either setPixels() or setPixelRef() was called.

        @param bitmap  SkBitmap containing SkImageInfo as input, and
                       SkPixelRef as output
        @return        true if SkPixelRef was allocated

        @example       https://fiddle.skia.org/c/@Bitmap_000
    */
    bool allocPixelRef(SkBitmap* bitmap) override;

There are still around 200 disabled examples that need to be fixed
(these result from API changes since the author left).

Change-Id: I14a31348a9ccaaa31f65424b91e3a3533d2583a7
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/198824
Commit-Queue: Hal Canary <halcanary@google.com>
Reviewed-by: Leon Scroggins <scroggo@google.com>
Reviewed-by: Joe Gregorio <jcgregorio@google.com>
diff --git a/docs/examples/Path_066.cpp b/docs/examples/Path_066.cpp
new file mode 100644
index 0000000..2b7b21a
--- /dev/null
+++ b/docs/examples/Path_066.cpp
@@ -0,0 +1,47 @@
+#if 0  // Disabled until updated to use current API.
+// Copyright 2019 Google LLC.
+// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
+#include "fiddle/examples.h"
+// HASH=5acc77eba0cb4d00bbf3a8f4db0c0aee
+REG_FIDDLE(Path_066, 256, 128, false, 0) {
+void draw(SkCanvas* canvas) {
+    SkRect oval = {8, 8, 56, 56};
+    SkPaint ovalPaint;
+    ovalPaint.setAntiAlias(true);
+    SkPaint textPaint(ovalPaint);
+    ovalPaint.setStyle(SkPaint::kStroke_Style);
+    SkPaint arcPaint(ovalPaint);
+    arcPaint.setStrokeWidth(5);
+    arcPaint.setColor(SK_ColorBLUE);
+    canvas->translate(-64, 0);
+    for (char arcStyle = '1'; arcStyle <= '6'; ++arcStyle) {
+        '4' == arcStyle ? canvas->translate(-96, 55) : canvas->translate(64, 0);
+        canvas->drawText(&arcStyle, 1, 30, 36, textPaint);
+        canvas->drawOval(oval, ovalPaint);
+        SkPath path;
+        path.moveTo({56, 32});
+        switch (arcStyle) {
+            case '1':
+                path.arcTo(oval, 0, 90, false);
+                break;
+            case '2':
+                canvas->drawArc(oval, 0, 90, false, arcPaint);
+                continue;
+            case '3':
+                path.addArc(oval, 0, 90);
+                break;
+            case '4':
+                path.arcTo({56, 56}, {32, 56}, 24);
+                break;
+            case '5':
+                path.arcTo({24, 24}, 0, SkPath::kSmall_ArcSize, SkPath::kCW_Direction, {32, 56});
+                break;
+            case '6':
+                path.conicTo({56, 56}, {32, 56}, SK_ScalarRoot2Over2);
+                break;
+         }
+         canvas->drawPath(path, arcPaint);
+     }
+}
+}  // END FIDDLE
+#endif  // Disabled until updated to use current API.