Revert of Sketch DM refactor.

dm/DMGpuGMTask.cpp

+#include "DMGpuGMTask.h"
+#include "DMUtil.h"
+#include "DMWriteTask.h"
+#include "SkCommonFlags.h"
+#include "SkSurface.h"
+#include "SkTLS.h"
+
+namespace DM {
+
+GpuGMTask::GpuGMTask(const char* config,
+                     Reporter* reporter,
+                     TaskRunner* taskRunner,
+                     skiagm::GMRegistry::Factory gmFactory,
+                     GrContextFactory::GLContextType contextType,
+                     GrGLStandard gpuAPI,
+                     int sampleCount,
+                     bool useDFText)
+    : GpuTask(reporter, taskRunner)
+    , fGM(gmFactory(NULL))
+    , fName(UnderJoin(fGM->getName(), config))
+    , fContextType(contextType)
+    , fGpuAPI(gpuAPI)
+    , fSampleCount(sampleCount)
+    , fUseDFText(useDFText)
+    {}
+
+static bool gAlreadyWarned[GrContextFactory::kGLContextTypeCnt][kGrGLStandardCnt];
+
+void GpuGMTask::draw(GrContextFactory* grFactory) {
+    SkImageInfo info = SkImageInfo::Make(SkScalarCeilToInt(fGM->width()),
+                                         SkScalarCeilToInt(fGM->height()),
+                                         kN32_SkColorType,
+                                         kPremul_SkAlphaType);
+    SkAutoTUnref<SkSurface> surface(NewGpuSurface(grFactory, fContextType, fGpuAPI, info,
+                                                  fSampleCount, fUseDFText));
+    if (!surface) {
+        if (!gAlreadyWarned[fContextType][fGpuAPI]) {
+            SkDebugf("FYI: couldn't create GPU context, type %d API %d.  Will skip.\n",
+                     fContextType, fGpuAPI);
+            gAlreadyWarned[fContextType][fGpuAPI] = true;
+        }
+        return;
+    }
+    SkCanvas* canvas = surface->getCanvas();
+    CanvasPreflight(canvas);
+
+    canvas->concat(fGM->getInitialTransform());
+    fGM->draw(canvas);
+    canvas->flush();
+#if GR_CACHE_STATS && SK_SUPPORT_GPU
+    if (FLAGS_veryVerbose) {
+        grFactory->get(fContextType)->printCacheStats();
+    }
+#endif
+
+    SkBitmap bitmap;
+    bitmap.setInfo(info);
+    canvas->readPixels(&bitmap, 0, 0);
+
+    this->spawnChild(SkNEW_ARGS(WriteTask, (*this, "GM", bitmap)));
+}
+
+bool GpuGMTask::shouldSkip() const {
+    return kGPUDisabled || SkToBool(fGM->getFlags() & skiagm::GM::kSkipGPU_Flag);
+}
+
+}  // namespace DM