Merge six commits from master-skia to master

Also corrects some code under development behind the HWUI_NEW_OPS flags
to match the updated Skia API.

Include external/skia/include/private
use SrcConstraint for drawBitmapRect
clean up to allow removal of flags for SCALAR_DIV and IMAGEINFO_FIELDS
don't call DEPRECATED getDevice()
update to newer API for drawBitmapRect
asABitmap is deprecated, used isABitmap

previous-Change-Id: I12208855a95948897077b1c1549eb35416cc801e
previous-Change-Id: I5044f0f61315fe48c60d7af5e261a7d0ed574f56
previous-Change-Id: Ic34a3ba77b3f9e091fa7aaba75018a307abacdab
previous-Change-Id: I79f8dd779920565d1204f7fe67b3286b1bbf4e9b
previous-Change-Id: Ic04d1f8274f6a862ea00f8d241363cf31f5ec1ec
previous-Change-Id: I9e4ae257a1976c74302b6a73f17405174ae58cec
previous-Change-Id: I85de3462ad1e4877784df38edc4bcd0acbd24e5e
Change-Id: Ide8e2f669e91a13c32521af3a16efdaa085c81d0
diff --git a/libs/hwui/SkiaShader.cpp b/libs/hwui/SkiaShader.cpp
index 6c105cf..83652c6 100644
--- a/libs/hwui/SkiaShader.cpp
+++ b/libs/hwui/SkiaShader.cpp
@@ -204,7 +204,7 @@
         SkiaShaderData::BitmapShaderData* outData) {
     SkBitmap bitmap;
     SkShader::TileMode xy[2];
-    if (shader.asABitmap(&bitmap, nullptr, xy) != SkShader::kDefault_BitmapType) {
+    if (!shader.isABitmap(&bitmap, nullptr, xy)) {
         return false;
     }
 
@@ -272,7 +272,7 @@
     }
 
     // The shader is not a gradient. Check for a bitmap shader.
-    if (shader.asABitmap(nullptr, nullptr, nullptr) == SkShader::kDefault_BitmapType) {
+    if (shader.isABitmap()) {
         return kBitmap_SkiaShaderType;
     }
     return kNone_SkiaShaderType;