Roll src/third_party/skia b5fae93:c13bc57 (manual roll)

Summary of changes available at:
https://chromium.googlesource.com/skia/+log/b5fae93..c13bc57

This roll includes SkDevice::drawPosText API changes for GatherPixelRefDevice and VectorPlatformDeviceEmf, needed after https://codereview.chromium.org/605533002.

CQ_EXTRA_TRYBOTS=tryserver.blink:linux_blink_rel,linux_blink_dbg
TBR=robertphillips@google.com

Review URL: https://codereview.chromium.org/607853003

Cr-Commit-Position: refs/heads/master@{#297168}

DEPS

@@ -35,7 +35,7 @@ vars = {
   'boringssl_git': 'https://boringssl.googlesource.com',
   'libvpx_revision': 'efe9712d52c2d216fb3d1ceb508b8148847a7e4b',
   'sfntly_revision': '1bdaae8fc788a5ac8936d68bf24f37d977a13dac',
-  'skia_revision': 'b5fae93d72c7b6480f83fd8a7b534cd1fdfcd49a',
+  'skia_revision': 'c13bc571d3e61a43b87eb97f0719abd304cafaf2',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling Skia
   # and V8 without interference from each other.

skia/ext/pixel_ref_utils.cc

@@ -222,8 +222,8 @@ class GatherPixelRefDevice : public SkBitmapDevice {
                            const void* text,
                            size_t len,
                            const SkScalar pos[],
-                           SkScalar const_y,
                            int scalars_per_pos,
+                           const SkPoint& offset,
                            const SkPaint& paint) SK_OVERRIDE {
     SkBitmap bitmap;
     if (!GetBitmapFromPaint(paint, &bitmap))
@@ -235,21 +235,13 @@ class GatherPixelRefDevice : public SkBitmapDevice {
     // Similar to SkDraw asserts.
     SkASSERT(scalars_per_pos == 1 || scalars_per_pos == 2);
 
-    SkPoint min_point;
-    SkPoint max_point;
-    if (scalars_per_pos == 1) {
-      min_point.set(pos[0], const_y);
-      max_point.set(pos[0], const_y);
-    } else if (scalars_per_pos == 2) {
-      min_point.set(pos[0], const_y + pos[1]);
-      max_point.set(pos[0], const_y + pos[1]);
-    }
+    SkPoint min_point = SkPoint::Make(offset.x() + pos[0],
+                                      offset.y() + (2 == scalars_per_pos ? pos[1] : 0));
+    SkPoint max_point = min_point;
 
     for (size_t i = 0; i < len; ++i) {
-      SkScalar x = pos[i * scalars_per_pos];
-      SkScalar y = const_y;
-      if (scalars_per_pos == 2)
-        y += pos[i * scalars_per_pos + 1];
+      SkScalar x = offset.x() + pos[i * scalars_per_pos];
+      SkScalar y = offset.y() + (2 == scalars_per_pos ? pos[i * scalars_per_pos + 1] : 0);
 
       min_point.set(std::min(x, min_point.x()), std::min(y, min_point.y()));
       max_point.set(std::max(x, max_point.x()), std::max(y, max_point.y()));

skia/ext/vector_platform_device_emf_win.cc

@@ -510,17 +510,17 @@ void VectorPlatformDeviceEmf::drawPosText(const SkDraw& draw,
                                           const void* text,
                                           size_t len,
                                           const SkScalar pos[],
-                                          SkScalar constY,
                                           int scalarsPerPos,
+                                          const SkPoint& offset,
                                           const SkPaint& paint) {
   SkGDIFontSetup setup;
   bool useDrawText = true;
 
   if (scalarsPerPos == 2 && len >= 2 &&
       SkPaint::kUTF8_TextEncoding != paint.getTextEncoding() &&
       setup.useGDI(hdc_, paint)) {
-    int startX = SkScalarRoundToInt(pos[0]);
-    int startY = SkScalarRoundToInt(pos[1] + getAscent(paint));
+    int startX = SkScalarRoundToInt(pos[0] + offset.x());
+    int startY = SkScalarRoundToInt(pos[1] + offset.y() + getAscent(paint));
     const int count = len >> 1;
     SkAutoSTMalloc<64, INT> storage(count);
     INT* advances = storage.get();
@@ -552,9 +552,11 @@ void VectorPlatformDeviceEmf::drawPosText(const SkDraw& draw,
     const char* curr = reinterpret_cast<const char*>(text);
     const char* stop = curr + len;
     while (curr < stop) {
-      SkScalar y = (1 == scalarsPerPos) ? constY : pos[1];
+      SkScalar x = offset.x() + pos[0];
+      SkScalar y = offset.y() + (2 == scalarsPerPos ? pos[1] : 0);
+
       size_t bytes = bytesPerCodePoint(curr);
-      drawText(draw, curr, bytes, pos[0], y, paint);
+      drawText(draw, curr, bytes, x, y, paint);
       curr += bytes;
       pos += scalarsPerPos;
     }

skia/ext/vector_platform_device_emf_win.h

@@ -59,8 +59,8 @@ class VectorPlatformDeviceEmf : public SkBitmapDevice, public PlatformDevice {
   virtual void drawText(const SkDraw& draw, const void* text, size_t len,
                         SkScalar x, SkScalar y, const SkPaint& paint) OVERRIDE;
   virtual void drawPosText(const SkDraw& draw, const void* text, size_t len,
-                           const SkScalar pos[], SkScalar constY,
-                           int scalarsPerPos, const SkPaint& paint) OVERRIDE;
+                           const SkScalar pos[], int scalarsPerPos,
+                           const SkPoint& offset, const SkPaint& paint) OVERRIDE;
   virtual void drawTextOnPath(const SkDraw& draw, const void* text, size_t len,
                               const SkPath& path, const SkMatrix* matrix,
                               const SkPaint& paint) OVERRIDE;