DM: make GPU tasks multithreaded again. Big refactor.

dm/DMTestTask.cpp

 #include "DMTestTask.h"
 #include "DMUtil.h"
 #include "SkCommandLineFlags.h"
 
 DEFINE_bool2(pathOpsExtended,     x, false, "Run extended pathOps tests.");
 DEFINE_bool2(pathOpsSingleThread, z, false, "Disallow pathOps tests from using threads.");
 DEFINE_bool2(pathOpsVerbose,      V, false, "Tell pathOps tests to be verbose.");
 
 namespace DM {
 
+bool TestReporter::allowExtendedTest() const { return FLAGS_pathOpsExtended; }
+bool TestReporter::allowThreaded()     const { return !FLAGS_pathOpsSingleThread; }
+bool TestReporter::verbose()           const { return FLAGS_pathOpsVerbose; }
+
 static SkString test_name(const char* name) {
     SkString result("test ");
     result.append(name);
     return result;
 }
 
-TestTask::TestTask(Reporter* reporter,
-                   TaskRunner* taskRunner,
-                   skiatest::TestRegistry::Factory factory)
-    : Task(reporter, taskRunner)
+CpuTestTask::CpuTestTask(Reporter* reporter,
+                         TaskRunner* taskRunner,
+                         skiatest::TestRegistry::Factory factory)
+    : CpuTask(reporter, taskRunner)
     , fTest(factory(NULL))
     , fName(test_name(fTest->getName())) {}
 
-void TestTask::draw() {
-    if (this->usesGpu()) {
-        fTest->setGrContextFactory(this->getGrContextFactory());
-    }
+GpuTestTask::GpuTestTask(Reporter* reporter,
+                         TaskRunner* taskRunner,
+                         skiatest::TestRegistry::Factory factory)
+    : GpuTask(reporter, taskRunner)
+    , fTest(factory(NULL))
+    , fName(test_name(fTest->getName())) {}
+
+
+void CpuTestTask::draw() {
     fTest->setReporter(&fTestReporter);
     fTest->run();
     if (!fTest->passed()) {
         this->fail(fTestReporter.failure());
     }
 }
 
-bool TestTask::TestReporter::allowExtendedTest() const { return FLAGS_pathOpsExtended; }
-bool TestTask::TestReporter::allowThreaded()     const { return !FLAGS_pathOpsSingleThread; }
-bool TestTask::TestReporter::verbose()           const { return FLAGS_pathOpsVerbose; }
+void GpuTestTask::draw(GrContextFactory* grFactory) {
+    fTest->setGrContextFactory(grFactory);
+    fTest->setReporter(&fTestReporter);
+    fTest->run();
+    if (!fTest->passed()) {
+        this->fail(fTestReporter.failure());
+    }
+}
 
 }  // namespace DM