Hide fields in SkImageInfo

R=rmistry@google.com
TBR=bsalomon

Author: reed@google.com

Review URL: https://codereview.chromium.org/536003002
diff --git a/src/image/SkSurface_Raster.cpp b/src/image/SkSurface_Raster.cpp
index 986994a..167f773 100644
--- a/src/image/SkSurface_Raster.cpp
+++ b/src/image/SkSurface_Raster.cpp
@@ -41,7 +41,7 @@
     static const size_t kMaxTotalSize = SK_MaxS32;
 
     int shift = 0;
-    switch (info.fColorType) {
+    switch (info.colorType()) {
         case kAlpha_8_SkColorType:
             shift = 0;
             break;
@@ -59,7 +59,7 @@
         return true;
     }
 
-    uint64_t minRB = (uint64_t)info.fWidth << shift;
+    uint64_t minRB = (uint64_t)info.width() << shift;
     if (minRB > rowBytes) {
         return false;
     }
@@ -69,7 +69,7 @@
         return false;
     }
 
-    uint64_t size = sk_64_mul(info.fHeight, rowBytes);
+    uint64_t size = sk_64_mul(info.height(), rowBytes);
     if (size > kMaxTotalSize) {
         return false;
     }
@@ -86,7 +86,7 @@
 }
 
 SkSurface_Raster::SkSurface_Raster(SkPixelRef* pr)
-    : INHERITED(pr->info().fWidth, pr->info().fHeight)
+    : INHERITED(pr->info().width(), pr->info().height())
 {
     const SkImageInfo& info = pr->info();