Fix linux warnings

Review URL: http://codereview.appspot.com/6354093/



git-svn-id: http://skia.googlecode.com/svn/trunk@4554 2bbb7eff-a529-9590-31e7-b0007b416f81

src/gpu/gl/GrGLCaps.cpp

@@ -175,8 +175,8 @@ bool GrGLCaps::readPixelsSupported(const GrGLInterface* intf,
         return true;
     }
 
-    int otherFormat = GR_GL_RGBA;
-    int otherType = GR_GL_UNSIGNED_BYTE;
+    GrGLint otherFormat = GR_GL_RGBA;
+    GrGLint otherType = GR_GL_UNSIGNED_BYTE;
 
     // The other supported format/type combo supported for ReadPixels
     // can change based on which render target is bound
@@ -188,7 +188,7 @@ bool GrGLCaps::readPixelsSupported(const GrGLInterface* intf,
                       GR_GL_IMPLEMENTATION_COLOR_READ_TYPE,
                       &otherType);
 
-    return otherFormat == format && otherType == type; 
+    return (GrGLenum)otherFormat == format && (GrGLenum)otherType == type;
 }
 
 namespace {

src/gpu/gl/GrGLPath.cpp

@@ -29,7 +29,7 @@ inline GrGLubyte verb_to_gl_path_cmd(const SkPath::Verb verb) {
     GR_STATIC_ASSERT(3 == SkPath::kCubic_Verb);
     GR_STATIC_ASSERT(4 == SkPath::kClose_Verb);
 
-    GrAssert(verb >= 0 && verb < GR_ARRAY_COUNT(gTable));
+    GrAssert(verb >= 0 && (size_t)verb < GR_ARRAY_COUNT(gTable));
     return gTable[verb];
 }
 
@@ -47,7 +47,7 @@ inline int num_pts(const SkPath::Verb verb) {
     GR_STATIC_ASSERT(3 == SkPath::kCubic_Verb);
     GR_STATIC_ASSERT(4 == SkPath::kClose_Verb);
 
-    GrAssert(verb >= 0 && verb < GR_ARRAY_COUNT(gTable));
+    GrAssert(verb >= 0 && (size_t)verb < GR_ARRAY_COUNT(gTable));
     return gTable[verb];
 }
 }

src/gpu/gl/GrGpuGL.cpp

@@ -1810,6 +1810,7 @@ void GrGpuGL::onGpuStencilPath(const GrPath* path, GrPathFill fill) {
         default:
             // Only the above two fill rules are allowed.
             GrCrash("Unexpected path fill.");
+            return; // suppress unused var warning.
     }
     GrGLint writeMask = fStencilSettings.writeMask(GrStencilSettings::kFront_Face);
     GL_CALL(StencilFillPath(id, fillMode, writeMask));