Add SkColorSpace::Equals() API

tests/ImageIsOpaqueTest.cpp

Index: tests/ImageIsOpaqueTest.cpp
diff --git a/tests/ImageIsOpaqueTest.cpp b/tests/ImageIsOpaqueTest.cpp
index 0660885a54529cdc2d7ed99993846794f9cd0761..1f585273b9205947d6b558634b6f0273e127fa18 100644
--- a/tests/ImageIsOpaqueTest.cpp
+++ b/tests/ImageIsOpaqueTest.cpp
@@ -6,6 +6,7 @@
  */
 
 #include "SkTypes.h"
+#include "Resources.h"
 #include "Test.h"
 
 #if SK_SUPPORT_GPU
@@ -18,7 +19,7 @@
 
 static void test_flatten(skiatest::Reporter* reporter, const SkImageInfo& info) {
     // just need a safe amount of storage, but ensure that it is 4-byte aligned.
-    int32_t storage[(sizeof(SkImageInfo)*2) / sizeof(int32_t)];
+    int32_t storage[2000];

[msarett, 2016/07/29 15:31:27]

Is this going to annoy Google3?

[mtklein, 2016/07/29 15:32:12]

Probably.  This is a test... just malloc it.

[msarett, 2016/07/29 15:37:15]

SGTM.  Done.

     SkBinaryWriteBuffer wb(storage, sizeof(storage));
     info.flatten(wb);
     SkASSERT(wb.bytesWritten() < sizeof(storage));
@@ -35,10 +36,24 @@ static void test_flatten(skiatest::Reporter* reporter, const SkImageInfo& info)
 }
 
 DEF_TEST(ImageInfo_flattening, reporter) {
+     sk_sp<SkData> data =
+             SkData::MakeFromFileName(GetResourcePath("icc_profiles/HP_ZR30w.icc").c_str());
+    sk_sp<SkColorSpace> space0 = SkColorSpace::NewICC(data->data(), data->size());
+    data = SkData::MakeFromFileName( GetResourcePath("icc_profiles/HP_Z32x.icc").c_str());
+    sk_sp<SkColorSpace> space1 = SkColorSpace::NewICC(data->data(), data->size());
+    data = SkData::MakeFromFileName(GetResourcePath("icc_profiles/upperLeft.icc").c_str());
+    sk_sp<SkColorSpace> space2 = SkColorSpace::NewICC(data->data(), data->size());
+    data = SkData::MakeFromFileName(GetResourcePath("icc_profiles/upperRight.icc").c_str());
+    sk_sp<SkColorSpace> space3 = SkColorSpace::NewICC(data->data(), data->size());
+
     sk_sp<SkColorSpace> spaces[] = {
         nullptr,
         SkColorSpace::NewNamed(SkColorSpace::kSRGB_Named),
         SkColorSpace::NewNamed(SkColorSpace::kAdobeRGB_Named),
+        space0,
+        space1,
+        space2,
+        space3,
     };
 
     for (int ct = 0; ct <= kLastEnum_SkColorType; ++ct) {