Revert of tryAllocPixels returns bool, allocPixels requires success

skia/ext/bitmap_platform_device_mac.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "skia/ext/bitmap_platform_device_mac.h"
 
 #import <ApplicationServices/ApplicationServices.h>
 #include <time.h>
 
 #include "base/mac/mac_util.h"
@@ skipping 92 matching lines @@
   SkBitmap bitmap;
   // TODO: verify that the CG Context's pixels will have tight rowbytes or pass in the correct
   // rowbytes for the case when context != NULL.
   bitmap.setInfo(SkImageInfo::MakeN32(width, height, is_opaque ? kOpaque_SkAlphaType : kPremul_SkAlphaType));
 
   void* data;
   if (context) {
     data = CGBitmapContextGetData(context);
     bitmap.setPixels(data);
   } else {
-    if (!bitmap.tryAllocPixels())
+    if (!bitmap.allocPixels())
       return NULL;
     data = bitmap.getPixels();
   }
 
   // If we were given data, then don't clobber it!
 #ifndef NDEBUG
   if (!context && is_opaque) {
     // To aid in finding bugs, we set the background color to something
     // obviously wrong so it will be noticable when it is not cleared
     bitmap.eraseARGB(255, 0, 255, 128);  // bright bluish green
@@ skipping 140 matching lines @@
 
 PlatformBitmap::~PlatformBitmap() {
   if (surface_)
     CGContextRelease(surface_);
 }
 
 bool PlatformBitmap::Allocate(int width, int height, bool is_opaque) {
   if (RasterDeviceTooBigToAllocate(width, height))
     return false;
     
-  if (!bitmap_.tryAllocN32Pixels(width, height, is_opaque))
+  if (!bitmap_.allocN32Pixels(width, height, is_opaque))
     return false;
 
   if (!is_opaque)
     bitmap_.eraseColor(0);
 
   surface_ = CGContextForData(bitmap_.getPixels(), bitmap_.width(),
                               bitmap_.height());
   return true;
 }
 
 }  // namespace skia