Workaround to set the sRGB flag on SkImageGenerator

src/codec/SkCodecPriv.h

 /*
  * Copyright 2015 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.
  */
 
 #ifndef SkCodecPriv_DEFINED
 #define SkCodecPriv_DEFINED
 
@@ skipping 99 matching lines @@
  * Most of our codecs support the same conversions:
  * - profileType must be the same
  * - opaque to any alpha type
  * - 565 only if opaque
  * - premul to unpremul and vice versa
  * - always support N32
  * - otherwise match the src color type
  */
 inline bool conversion_possible(const SkImageInfo& dst, const SkImageInfo& src) {
     // FIXME: skbug.com/4895
-    // Currently, we treat both kLinear and ksRGB encoded images as if they are kLinear.
-    // This makes sense while we do not have proper support for ksRGB.  This is also
-    // the reason why we always allow the client to request kLinear.
-    if (dst.profileType() != src.profileType() &&
-            kLinear_SkColorProfileType != dst.profileType()) {
-        return false;
-    }
+    // Currently, we ignore the SkColorProfileType on the SkImageInfo.  We
+    // will treat the encoded data as linear regardless of what the client
+    // requests.
 
     // Ensure the alpha type is valid
     if (!valid_alpha(dst.alphaType(), src.alphaType())) {
         return false;
     }
 
     // Check for supported color types
     switch (dst.colorType()) {
         case kN32_SkColorType:
             return true;
@@ skipping 132 matching lines @@
 
 inline uint16_t get_endian_short(const uint8_t* data, bool littleEndian) {
     if (littleEndian) {
         return (data[1] << 8) | (data[0]);
     }
 
     return (data[0] << 8) | (data[1]);
 }
 
 #endif // SkCodecPriv_DEFINED