Disable dead code stripping in the Dart framework dylib

Our implementation of asset_bundle is now quite different from the
canonical service.

Disable the ENABLE_BITCODE flag and don't make the precompilation dylib link with standard libraries

Disable the ENABLE_BITCODE flag and don't make the precompilation dylib link with standard libraries

Update the Dart VM and wire in the extra kDataSnapshot symbol for the precompiler

Enable building for Android using clang for target builds

Tool for running GDB on the Flutter engine

Add explicit destructor to appease clang plugin

@jason-simmons

Fix iOS build

Support loading of custom fonts

Remove Dart entry point for ServiceRegistry

We don't use this entry point anymore.

Flutter.mojo should support multiple views

Each view gets its own Dart isolate. Unfortunately, the ShellPtr is a unique
resource, which means we need to proxy an implementation of Shell to each view.
In the future, we should probably switch dart to expect an ApplicationConnector
rather than a Shell.

Remove ServiceRegistry

We don't need this anymore now that we have Mozart.

Make the buildbot generate an archive for the dynamic services SDK

Move ganesh_canvas to sky/shell/gpu/direct/

The FLX will contain a font manifest JSON file that maps font family names
to custom font assets.  Flutter will provide a FontSelector that loads
fonts on demand and caches typeface and style data.

We only use the ganesh canvas in the direct configuration. This patch moves the
class into the directory to make that clear.

Attach a stencil buffer

Skia can go faster (and crashes less) when we have a stencil buffer.

Fixes https://github.com/flutter/flutter/issues/1931

Make iOS keyboard robust to selection of -1

The Dart code uses -1 to signal that there is no current selection. If
we get text input in this state, we need to do something reasonable.
This patch teach us to treat that case as if the selection was zero.

This patch also improves how we convert from NSString to string16 and
makes it so we don't leak keyboard subviews.

Fixes https://github.com/flutter/flutter/issues/1878

Add a toString to ui.Image

Fixes #1866

Remove reference to non-existent directory

This was breaking the build with gcm enabled.

Remove dart:ui_internals