diff -r 000000000000 -r 6474c204b198 gfx/skia/trunk/src/gpu/GrRenderTarget.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/skia/trunk/src/gpu/GrRenderTarget.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,109 @@
+
+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+
+#include "GrRenderTarget.h"
+
+#include "GrContext.h"
+#include "GrGpu.h"
+#include "GrStencilBuffer.h"
+
+bool GrRenderTarget::readPixels(int left, int top, int width, int height,
+                                GrPixelConfig config,
+                                void* buffer,
+                                size_t rowBytes,
+                                uint32_t pixelOpsFlags) {
+    // go through context so that all necessary flushing occurs
+    GrContext* context = this->getContext();
+    if (NULL == context) {
+        return false;
+    }
+    return context->readRenderTargetPixels(this,
+                                           left, top, width, height,
+                                           config, buffer, rowBytes,
+                                           pixelOpsFlags);
+}
+
+void GrRenderTarget::writePixels(int left, int top, int width, int height,
+                                 GrPixelConfig config,
+                                 const void* buffer,
+                                 size_t rowBytes,
+                                 uint32_t pixelOpsFlags) {
+    // go through context so that all necessary flushing occurs
+    GrContext* context = this->getContext();
+    if (NULL == context) {
+        return;
+    }
+    context->writeRenderTargetPixels(this,
+                                     left, top, width, height,
+                                     config, buffer, rowBytes,
+                                     pixelOpsFlags);
+}
+
+void GrRenderTarget::resolve() {
+    // go through context so that all necessary flushing occurs
+    GrContext* context = this->getContext();
+    if (NULL == context) {
+        return;
+    }
+    context->resolveRenderTarget(this);
+}
+
+size_t GrRenderTarget::sizeInBytes() const {
+    size_t colorBits;
+    if (kUnknown_GrPixelConfig == fDesc.fConfig) {
+        colorBits = 32; // don't know, make a guess
+    } else {
+        colorBits = GrBytesPerPixel(fDesc.fConfig);
+    }
+    uint64_t size = fDesc.fWidth;
+    size *= fDesc.fHeight;
+    size *= colorBits;
+    size *= GrMax(1, fDesc.fSampleCnt);
+    return (size_t)(size / 8);
+}
+
+void GrRenderTarget::flagAsNeedingResolve(const SkIRect* rect) {
+    if (kCanResolve_ResolveType == getResolveType()) {
+        if (NULL != rect) {
+            fResolveRect.join(*rect);
+            if (!fResolveRect.intersect(0, 0, this->width(), this->height())) {
+                fResolveRect.setEmpty();
+            }
+        } else {
+            fResolveRect.setLTRB(0, 0, this->width(), this->height());
+        }
+    }
+}
+
+void GrRenderTarget::overrideResolveRect(const SkIRect rect) {
+    fResolveRect = rect;
+    if (fResolveRect.isEmpty()) {
+        fResolveRect.setLargestInverted();
+    } else {
+        if (!fResolveRect.intersect(0, 0, this->width(), this->height())) {
+            fResolveRect.setLargestInverted();
+        }
+    }
+}
+
+void GrRenderTarget::setStencilBuffer(GrStencilBuffer* stencilBuffer) {
+    SkRefCnt_SafeAssign(fStencilBuffer, stencilBuffer);
+}
+
+void GrRenderTarget::onRelease() {
+    this->setStencilBuffer(NULL);
+
+    INHERITED::onRelease();
+}
+
+void GrRenderTarget::onAbandon() {
+    this->setStencilBuffer(NULL);
+
+    INHERITED::onAbandon();
+}