More Windows 64b compilation warning fixes

https://codereview.chromium.org/47513017/



git-svn-id: http://skia.googlecode.com/svn/trunk@12337 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/SkGpuDevice.cpp b/src/gpu/SkGpuDevice.cpp
index 747688e..afdc7e9 100644
--- a/src/gpu/SkGpuDevice.cpp
+++ b/src/gpu/SkGpuDevice.cpp
@@ -571,7 +571,7 @@
 
     fContext->drawVertices(grPaint,
                            gPointMode2PrimtiveType[mode],
-                           count,
+                           SkToS32(count),
                            (GrPoint*)pts,
                            NULL,
                            NULL,
diff --git a/src/gpu/gl/GrGLProgramDesc.cpp b/src/gpu/gl/GrGLProgramDesc.cpp
index d958742..e655210 100644
--- a/src/gpu/gl/GrGLProgramDesc.cpp
+++ b/src/gpu/gl/GrGLProgramDesc.cpp
@@ -105,7 +105,7 @@
         memset(desc->header(), 0, kHeaderSize);
     }
     // write the key length
-    *desc->atOffset<uint32_t, kLengthOffset>() = newKeyLength;
+    *desc->atOffset<uint32_t, kLengthOffset>() = SkToU32(newKeyLength);
 
     KeyHeader* header = desc->header();
     EffectKey* effectKeys = desc->effectKeys();
diff --git a/src/gpu/gl/GrGpuGL_program.cpp b/src/gpu/gl/GrGpuGL_program.cpp
index 4f9adb7..a777e8f 100644
--- a/src/gpu/gl/GrGpuGL_program.cpp
+++ b/src/gpu/gl/GrGpuGL_program.cpp
@@ -291,7 +291,7 @@
 
 void GrGpuGL::setupGeometry(const DrawInfo& info, size_t* indexOffsetInBytes) {
 
-    GrGLsizei stride = this->getDrawState().getVertexSize();
+    GrGLsizei stride = static_cast<GrGLsizei>(this->getDrawState().getVertexSize());
 
     size_t vertexOffsetInBytes = stride * info.startVertex();