Dump batch bounds and scissor rect

src/gpu/batches/GrBatch.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrBatch_DEFINED
 #define GrBatch_DEFINED
 
@@ skipping 100 matching lines @@
     void prepare(GrBatchFlushState* state) { this->onPrepare(state); }
 
     /** Issues the batches commands to GrGpu. */
     void draw(GrBatchFlushState* state) { this->onDraw(state); }
 
     /** Used to block batching across render target changes. Remove this once we store
         GrBatches for different RTs in different targets. */
     virtual uint32_t renderTargetUniqueID() const = 0;
 
     /** Used for spewing information about batches when debugging. */
-    virtual SkString dumpInfo() const = 0;
+    virtual SkString dumpInfo() const {
+        SkString string;
+        string.appendf("BatchBounds: [L: %.2f, T: %.2f, R: %.2f, B: %.2f]\n",
+                       fBounds.fLeft, fBounds.fTop, fBounds.fRight, fBounds.fBottom);
+        return string;
+    }
 
     /** Can remove this when multi-draw-buffer lands */
     virtual GrRenderTarget* renderTarget() const = 0;
 
 protected:
     // NOTE, compute some bounds, even if extremely conservative.  Do *NOT* setLargest on the bounds
     // rect because we outset it for dst copy textures
     void setBounds(const SkRect& newBounds) { fBounds = newBounds; }
 
     void joinBounds(const SkRect& otherBounds) {
@@ skipping 27 matching lines @@
 
     SkDEBUGCODE(bool                    fUsed;)
     const uint32_t                      fClassID;
     static uint32_t GenBatchID() { return GenID(&gCurrBatchUniqueID); }
     mutable uint32_t                    fUniqueID;
     static int32_t                      gCurrBatchUniqueID;
     static int32_t                      gCurrBatchClassID;
 };
 
 #endif