GpuMemoryManager should limit memory allocations based on viewport size for android.

content/common/gpu/image_transport_surface.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.
 
 #if defined(ENABLE_GPU)
 
 #include "content/common/gpu/image_transport_surface.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 206 matching lines @@
   // On windows, the surface is recreated and, in case the newly allocated
   // surface happens to have the same address, it should be invalidated on the
   // decoder so that future calls to MakeCurrent do not early out on the
   // assumption that neither the context or surface have actually changed.
 #if defined(OS_WIN)
   Decoder()->ReleaseCurrent();
 #endif
 
   surface_->OnResize(size);
 
+#if defined(OS_ANDROID)
+  manager_->gpu_memory_manager()->ScheduleManage();

[mmocny, 2012/05/03 15:00:12]

I suspect its not possible to resize on android anyway, so this may be useless. 
Leaving here for completeness for now.

[jonathan.backer, 2012/05/04 14:25:28]

How does screen rotation work? I suspect that we get a resize here (but this
wouldn't change the allocation).

[mmocny, 2012/05/04 14:37:21]

Good point! Actually the size of the chrome (as in, browser ui) may be higher in
landscape, and so viewport size may actually be smaller.

On 2012/05/04 14:25:28, jonathan.backer wrote:

+#endif
+
 #if defined(OS_WIN)
   Decoder()->MakeCurrent();
   SetSwapInterval();
 #endif
 }
 
 PassThroughImageTransportSurface::PassThroughImageTransportSurface(
     GpuChannelManager* manager,
     GpuCommandBufferStub* stub,
     gfx::GLSurface* surface,
@@ skipping 92 matching lines @@
     helper_->SendResizeView(size);
     helper_->SetScheduled(false);
   } else {
     Resize(new_size_);
   }
 }
 
 PassThroughImageTransportSurface::~PassThroughImageTransportSurface() {}
 
 #endif  // defined(ENABLE_GPU)