Enforce a memory limit on MappedMemoryManager

content/browser/renderer_host/compositor_impl_android.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 "content/browser/renderer_host/compositor_impl_android.h"
 
 #include <android/bitmap.h>
 #include <android/native_window_jni.h>
 #include <map>
 
@@ skipping 372 matching lines @@
       display_info.GetDisplayWidth() *
       kBytesPerPixel;
   if (!context->Initialize(
           attributes,
           false,
           CAUSE_FOR_GPU_LAUNCH_WEBGRAPHICSCONTEXT3DCOMMANDBUFFERIMPL_INITIALIZE,
           64 * 1024,  // command buffer size
           64 * 1024,  // start transfer buffer size
           64 * 1024,  // min transfer buffer size
           std::min(3 * full_screen_texture_size_in_bytes,
-                   kDefaultMaxTransferBufferSize))) {
+                   kDefaultMaxTransferBufferSize),
+          64 * 1024   // mapped memory limit

[no sievers, 2013/08/20 02:46:54]

Can you put this in a separate change?
We have to think about the value.

[kaanb, 2013/08/20 22:15:46]

Done.

+  )) {
     LOG(ERROR) << "Failed to create 3D context for compositor.";
     return scoped_ptr<WebGraphicsContext3DCommandBufferImpl>();
   }
   return context.Pass();
 }
 
 scoped_ptr<cc::OutputSurface> CompositorImpl::CreateOutputSurface(
     bool fallback) {
   WebKit::WebGraphicsContext3D::Attributes attrs;
   attrs.shareResources = true;
@@ skipping 118 matching lines @@
     case ANDROID_BITMAP_FORMAT_RGBA_8888:
       return GL_UNSIGNED_BYTE;
       break;
     case ANDROID_BITMAP_FORMAT_RGB_565:
     default:
       return GL_UNSIGNED_SHORT_5_6_5;
   }
 }
 
 } // namespace content