Revert "Revert of add colortable support to imagegenerator (https://codereview.chromium.org/304443003/)"

Fix is to add colortable param to installPixels()

This reverts commit 924205aaf2e0c3c65dda13e0eaccde3e7b2a5c40.

BUG=skia:
R=scroggo@google.com, reed@chromium.org

Author: reed@google.com

Review URL: https://codereview.chromium.org/300263005

git-svn-id: http://skia.googlecode.com/svn/trunk@14958 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tests/CachedDecodingPixelRefTest.cpp b/tests/CachedDecodingPixelRefTest.cpp
index 10e33ba..eff77e2 100644
--- a/tests/CachedDecodingPixelRefTest.cpp
+++ b/tests/CachedDecodingPixelRefTest.cpp
@@ -183,7 +183,9 @@
         SkASSERT((fType <= kLast_TestType) && (fType >= 0));
     }
     virtual ~TestImageGenerator() { }
-    virtual bool getInfo(SkImageInfo* info) SK_OVERRIDE {
+
+protected:
+    virtual bool onGetInfo(SkImageInfo* info) SK_OVERRIDE {
         REPORTER_ASSERT(fReporter, NULL != info);
         if ((NULL == info) || (kFailGetInfo_TestType == fType)) {
             return false;
@@ -194,9 +196,9 @@
         info->fAlphaType = kOpaque_SkAlphaType;
         return true;
     }
-    virtual bool getPixels(const SkImageInfo& info,
-                           void* pixels,
-                           size_t rowBytes) SK_OVERRIDE {
+
+    virtual bool onGetPixels(const SkImageInfo& info, void* pixels, size_t rowBytes,
+                             SkPMColor ctable[], int* ctableCount) SK_OVERRIDE {
         REPORTER_ASSERT(fReporter, pixels != NULL);
         size_t minRowBytes
             = static_cast<size_t>(info.fWidth * info.bytesPerPixel());