Add explicit dependency on v8_base

This is necessary in order to link v8_shell (for host) with the Android
toolchain.

Without it, the line in the makefile is:
$(builddir)/v8_shell: LD_INPUTS := $(OBJS) $(obj).host/v8/tools/gyp/libv8_snapshot.a $(obj).host/v8/tools/gyp/libv8_base.a

Now it appears as:
$(builddir)/v8_shell: LD_INPUTS := $(OBJS) $(obj).host/v8/tools/gyp/libv8_base.a $(obj).host/v8/tools/gyp/libv8_snapshot.a

and it successfully links.

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9668013
Patch from Yaron Friedman <yfriedman@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11005 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

tools/gyp/v8.gyp

@@ -40,10 +40,16 @@
               'toolsets': ['target'],
             }],
             ['v8_use_snapshot=="true"', {
-              'dependencies': ['v8_snapshot'],
+              # The dependency on v8_base should come from a transitive
+              # dependency however the Android toolchain requires libv8_base.a
+              # to appear before libv8_snapshot.a so it's listed explicitly.
+              'dependencies': ['v8_base', 'v8_snapshot'],
             },
             {
-              'dependencies': ['v8_nosnapshot'],
+              # The dependency on v8_base should come from a transitive
+              # dependency however the Android toolchain requires libv8_base.a
+              # to appear before libv8_snapshot.a so it's listed explicitly.
+              'dependencies': ['v8_base', 'v8_nosnapshot'],
             }],
             ['component=="shared_library"', {
               'type': '<(component)',