Remove redundant code for getMappedPointer in PixelBuffer

b/29755121

Change-Id: I6cd5bbe11a53bc5e1cd421671d3d9aa89591d886
diff --git a/libs/hwui/PixelBuffer.cpp b/libs/hwui/PixelBuffer.cpp
index 165c7db..2a96b69 100644
--- a/libs/hwui/PixelBuffer.cpp
+++ b/libs/hwui/PixelBuffer.cpp
@@ -37,8 +37,6 @@
 
     uint8_t* map(AccessMode mode = kAccessMode_ReadWrite) override;
 
-    uint8_t* getMappedPointer() const override;
-
     void upload(uint32_t x, uint32_t y, uint32_t width, uint32_t height, int offset) override;
 
 protected:
@@ -64,10 +62,6 @@
     mAccessMode = kAccessMode_None;
 }
 
-uint8_t* CpuPixelBuffer::getMappedPointer() const {
-    return mAccessMode == kAccessMode_None ? nullptr : mBuffer.get();
-}
-
 void CpuPixelBuffer::upload(uint32_t x, uint32_t y, uint32_t width, uint32_t height, int offset) {
     glTexSubImage2D(GL_TEXTURE_2D, 0, x, y, width, height,
             mFormat, GL_UNSIGNED_BYTE, &mBuffer[offset]);
@@ -84,8 +78,6 @@
 
     uint8_t* map(AccessMode mode = kAccessMode_ReadWrite) override;
 
-    uint8_t* getMappedPointer() const override;
-
     void upload(uint32_t x, uint32_t y, uint32_t width, uint32_t height, int offset) override;
 
 protected:
@@ -142,10 +134,6 @@
     }
 }
 
-uint8_t* GpuPixelBuffer::getMappedPointer() const {
-    return mMappedPointer;
-}
-
 void GpuPixelBuffer::upload(uint32_t x, uint32_t y, uint32_t width, uint32_t height, int offset) {
     // If the buffer is not mapped, unmap() will not bind it
     mCaches.pixelBufferState().bind(mBuffer);
diff --git a/libs/hwui/PixelBuffer.h b/libs/hwui/PixelBuffer.h
index bbef36b..9536bc8 100644
--- a/libs/hwui/PixelBuffer.h
+++ b/libs/hwui/PixelBuffer.h
@@ -99,12 +99,6 @@
     }
 
     /**
-     * Returns the currently mapped pointer. Returns NULL if the buffer
-     * is not mapped.
-     */
-    virtual uint8_t* getMappedPointer() const = 0;
-
-    /**
      * Upload the specified rectangle of this pixel buffer as a
      * GL_TEXTURE_2D texture. Calling this method will trigger
      * an unmap() if necessary.
@@ -199,8 +193,7 @@
     /**
      * Unmaps this buffer, if needed. After the buffer is unmapped,
      * the pointer previously returned by map() becomes invalid and
-     * should not be used. After calling this method, getMappedPointer()
-     * will always return NULL.
+     * should not be used.
      */
     virtual void unmap() = 0;