Document the SkScalerContext pure virtuals.

src/core/SkScalerContext.cpp

 
 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "SkScalerContext.h"
@@ skipping 334 matching lines @@
 
             if (ir.isEmpty() || !ir.is16Bit()) {
                 goto SK_ERROR;
             }
             glyph->fLeft    = ir.fLeft;
             glyph->fTop     = ir.fTop;
             glyph->fWidth   = SkToU16(ir.width());
             glyph->fHeight  = SkToU16(ir.height());
 
             if (glyph->fWidth > 0) {
-            switch (fRec.fMaskFormat) {
-            case SkMask::kLCD16_Format:
-            case SkMask::kLCD32_Format:
-                glyph->fWidth += 2;
-                glyph->fLeft -= 1;
-                break;
-            default:
-                break;
+                switch (fRec.fMaskFormat) {
+                case SkMask::kLCD16_Format:
+                case SkMask::kLCD32_Format:
+                    glyph->fWidth += 2;
+                    glyph->fLeft -= 1;
+                    break;
+                default:
+                    break;
+                }
             }
-    }
         }
     }
 
     if (SkMask::kARGB32_Format != glyph->fMaskFormat) {
         glyph->fMaskFormat = fRec.fMaskFormat;
     }
 
     // If we are going to create the mask, then we cannot keep the color
     if ((fGenerateImageFromPath || fMaskFilter) &&
             SkMask::kARGB32_Format == glyph->fMaskFormat) {
@@ skipping 605 matching lines @@
 SkScalerContext* SkTypeface::createScalerContext(const SkDescriptor* desc,
                                                  bool allowFailure) const {
     SkScalerContext* c = this->onCreateScalerContext(desc);
 
     if (!c && !allowFailure) {
         c = SkNEW_ARGS(SkScalerContext_Empty,
                        (const_cast<SkTypeface*>(this), desc));
     }
     return c;
 }