Move GrDrawingManager methods to their own .cpp file

Small cleanup

Review URL: https://codereview.chromium.org/1407393004
diff --git a/src/gpu/GrContext.cpp b/src/gpu/GrContext.cpp
index 5d998f8..2ca3461 100644
--- a/src/gpu/GrContext.cpp
+++ b/src/gpu/GrContext.cpp
@@ -7,172 +7,28 @@
  */
 
 #include "GrContext.h"
-
-#include "GrBatchFontCache.h"
-#include "GrBatchFlushState.h"
-#include "GrBatchTest.h"
-#include "GrCaps.h"
 #include "GrContextOptions.h"
-#include "GrDefaultGeoProcFactory.h"
 #include "GrDrawingManager.h"
 #include "GrDrawContext.h"
-#include "GrDrawTarget.h"
-#include "GrGpuResource.h"
-#include "GrGpuResourcePriv.h"
-#include "GrGpu.h"
-#include "GrIndexBuffer.h"
 #include "GrLayerCache.h"
-#include "GrOvalRenderer.h"
-#include "GrPathRenderer.h"
-#include "GrPathUtils.h"
-#include "GrRenderTargetPriv.h"
 #include "GrResourceCache.h"
 #include "GrResourceProvider.h"
 #include "GrSoftwarePathRenderer.h"
-#include "GrStencilAndCoverTextContext.h"
-#include "GrStrokeInfo.h"
 #include "GrSurfacePriv.h"
 #include "GrTextBlobCache.h"
-#include "GrTexturePriv.h"
-#include "GrTracing.h"
-#include "GrVertices.h"
-#include "SkDashPathPriv.h"
+
 #include "SkConfig8888.h"
 #include "SkGrPriv.h"
-#include "SkRRect.h"
-#include "SkStrokeRec.h"
-#include "SkSurfacePriv.h"
-#include "SkTLazy.h"
-#include "SkTLS.h"
-#include "SkTraceEvent.h"
-#include "SkTTopoSort.h"
-
-#include "batches/GrBatch.h"
 
 #include "effects/GrConfigConversionEffect.h"
-#include "effects/GrDashingEffect.h"
-#include "effects/GrSingleTextureEffect.h"
 
 #define ASSERT_OWNED_RESOURCE(R) SkASSERT(!(R) || (R)->getContext() == this)
 #define RETURN_IF_ABANDONED if (fDrawingManager->abandoned()) { return; }
 #define RETURN_FALSE_IF_ABANDONED if (fDrawingManager->abandoned()) { return false; }
 #define RETURN_NULL_IF_ABANDONED if (fDrawingManager->abandoned()) { return nullptr; }
 
-
 ////////////////////////////////////////////////////////////////////////////////
 
-void GrDrawingManager::cleanup() {
-    for (int i = 0; i < fDrawTargets.count(); ++i) {
-        fDrawTargets[i]->unref();
-    }
-
-    fDrawTargets.reset();
-
-    delete fNVPRTextContext;
-    fNVPRTextContext = nullptr;
-
-    for (int i = 0; i < kNumPixelGeometries; ++i) {
-        delete fTextContexts[i][0];
-        fTextContexts[i][0] = nullptr;
-        delete fTextContexts[i][1];
-        fTextContexts[i][1] = nullptr;
-    }
-}
-
-GrDrawingManager::~GrDrawingManager() {
-    this->cleanup();
-}
-
-void GrDrawingManager::abandon() {
-    fAbandoned = true;
-    this->cleanup();
-}
-
-void GrDrawingManager::reset() {
-    for (int i = 0; i < fDrawTargets.count(); ++i) {
-        fDrawTargets[i]->reset();
-    }
-}
-
-void GrDrawingManager::flush() {
-    SkDEBUGCODE(bool result =) 
-                        SkTTopoSort<GrDrawTarget, GrDrawTarget::TopoSortTraits>(&fDrawTargets);
-    SkASSERT(result);
-
-    for (int i = 0; i < fDrawTargets.count(); ++i) {
-        //SkDEBUGCODE(fDrawTargets[i]->dump();)
-        fDrawTargets[i]->flush();
-    }
-
-#ifndef ENABLE_MDB
-    // When MDB is disabled we keep reusing the same drawTarget
-    if (fDrawTargets.count()) {
-        SkASSERT(fDrawTargets.count() == 1);
-        fDrawTargets[0]->resetFlag(GrDrawTarget::kWasOutput_Flag);
-    }
-#endif
-}
-
-GrTextContext* GrDrawingManager::textContext(const SkSurfaceProps& props,
-                                             GrRenderTarget* rt) {
-    if (this->abandoned()) {
-        return nullptr;
-    }
-
-    SkASSERT(props.pixelGeometry() < kNumPixelGeometries);
-    bool useDIF = props.isUseDeviceIndependentFonts();
-
-    if (useDIF && fContext->caps()->shaderCaps()->pathRenderingSupport() &&
-        rt->isStencilBufferMultisampled()) {
-        GrStencilAttachment* sb = fContext->resourceProvider()->attachStencilAttachment(rt);
-        if (sb) {
-            if (!fNVPRTextContext) {
-                fNVPRTextContext = GrStencilAndCoverTextContext::Create(fContext, props);
-            }
-
-            return fNVPRTextContext;
-        }
-    }
-
-    if (!fTextContexts[props.pixelGeometry()][useDIF]) {
-        fTextContexts[props.pixelGeometry()][useDIF] = GrAtlasTextContext::Create(fContext, props);
-    }
-
-    return fTextContexts[props.pixelGeometry()][useDIF];
-}
-
-GrDrawTarget* GrDrawingManager::newDrawTarget(GrRenderTarget* rt) {
-    SkASSERT(fContext);
-
-#ifndef ENABLE_MDB
-    // When MDB is disabled we always just return the single drawTarget
-    if (fDrawTargets.count()) {
-        SkASSERT(fDrawTargets.count() == 1);
-        // DrawingManager gets the creation ref - this ref is for the caller
-        return SkRef(fDrawTargets[0]);
-    }
-#endif
-
-    GrDrawTarget* dt = new GrDrawTarget(fContext->getGpu(), fContext->resourceProvider());
-
-    *fDrawTargets.append() = dt;
-
-    // DrawingManager gets the creation ref - this ref is for the caller 
-    return SkRef(dt);
-}
-
-GrDrawContext* GrDrawingManager::drawContext(GrRenderTarget* rt, 
-                                             const SkSurfaceProps* surfaceProps) {
-    if (this->abandoned()) {
-        return nullptr;
-    }
-
-    return new GrDrawContext(this, rt, surfaceProps);
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-
 GrContext* GrContext::Create(GrBackend backend, GrBackendContext backendContext) {
     GrContextOptions defaultOptions;
     return Create(backend, backendContext, defaultOptions);