gpu: Upgrade DEPTH_COMPONENT16 to DEPTH_COMPONENT24 if possible

gpu/command_buffer/service/gles2_cmd_decoder.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder.cc b/gpu/command_buffer/service/gles2_cmd_decoder.cc
index 016fa4bda3772afd2e6a2fecd5cd6fe839049c69..de950713f75ba79b4c0cc4ecac5c39c5692640a6 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder.cc
@@ -1941,8 +1941,8 @@ bool BackRenderbuffer::AllocateStorage(const gfx::Size& size, GLenum format,
   ScopedRenderBufferBinder binder(decoder_, id_);
 
   uint32 estimated_size = 0;
-  if (!RenderbufferManager::ComputeEstimatedRenderbufferSize(
-      size.width(), size.height(), samples, format, &estimated_size)) {
+  if (!decoder_->renderbuffer_manager()->ComputeEstimatedRenderbufferSize(
+           size.width(), size.height(), samples, format, &estimated_size)) {
     return false;
   }
 
@@ -5022,8 +5022,8 @@ void GLES2DecoderImpl::DoRenderbufferStorageMultisample(
   }
 
   uint32 estimated_size = 0;
-  if (!RenderbufferManager::ComputeEstimatedRenderbufferSize(
-      width, height, samples, internalformat, &estimated_size)) {
+  if (!renderbuffer_manager()->ComputeEstimatedRenderbufferSize(
+           width, height, samples, internalformat, &estimated_size)) {
     LOCAL_SET_GL_ERROR(
         GL_OUT_OF_MEMORY,
         "glRenderbufferStorageMultsample", "dimensions too large");
@@ -5037,8 +5037,9 @@ void GLES2DecoderImpl::DoRenderbufferStorageMultisample(
     return;
   }
 
-  GLenum impl_format = RenderbufferManager::
-      InternalRenderbufferFormatToImplFormat(internalformat);
+  GLenum impl_format =
+      renderbuffer_manager()->InternalRenderbufferFormatToImplFormat(
+          internalformat);
   LOCAL_COPY_REAL_GL_ERRORS_TO_WRAPPER("glRenderbufferStorageMultisample");
   if (IsAngle()) {
     glRenderbufferStorageMultisampleANGLE(
@@ -5190,8 +5191,8 @@ void GLES2DecoderImpl::DoRenderbufferStorage(
   }
 
   uint32 estimated_size = 0;
-  if (!RenderbufferManager::ComputeEstimatedRenderbufferSize(
-      width, height, 1, internalformat, &estimated_size)) {
+  if (!renderbuffer_manager()->ComputeEstimatedRenderbufferSize(
+           width, height, 1, internalformat, &estimated_size)) {
     LOCAL_SET_GL_ERROR(
         GL_OUT_OF_MEMORY, "glRenderbufferStorage", "dimensions too large");
     return;
@@ -5205,9 +5206,11 @@ void GLES2DecoderImpl::DoRenderbufferStorage(
 
   LOCAL_COPY_REAL_GL_ERRORS_TO_WRAPPER("glRenderbufferStorage");
   glRenderbufferStorageEXT(
-      target, RenderbufferManager::
-          InternalRenderbufferFormatToImplFormat(internalformat),
-      width, height);
+      target,
+      renderbuffer_manager()->InternalRenderbufferFormatToImplFormat(
+          internalformat),
+      width,
+      height);
   GLenum error = LOCAL_PEEK_GL_ERROR("glRenderbufferStorage");
   if (error == GL_NO_ERROR) {
     // TODO(gman): If tetxures tracked which framebuffers they were attached to